Home / 646,129.18-969,193.54-172,802.25

Finding the Fourth Proportional to 646,129.18, 969,193.54 and 172,802.25

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Solution

The fourth proportional to 646,129.18, 969,193.54 and 172,802.25 is: 259,203.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,129.18 : 969,193.54 = 172,802.25 : x
  2. Step 2: Convert to fraction form
    646,129.18/969,193.54 = 172,802.25/x
  3. Step 3: Cross multiply
    646,129.18x = 969,193.54 × 172,802.25
  4. Step 4: Simplify right side
    646,129.18x = 167,478,824,397.47
  5. Step 5: Solve for x
    x = 167,478,824,397.47/646,129.18
  6. Step 6: Final answer
    x = 259,203.31

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.