Home / 631,394.39-947,090.76-158,079.70

Finding the Fourth Proportional to 631,394.39, 947,090.76 and 158,079.70

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Solution

The fourth proportional to 631,394.39, 947,090.76 and 158,079.70 is: 237,119.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,394.39 : 947,090.76 = 158,079.70 : x
  2. Step 2: Convert to fraction form
    631,394.39/947,090.76 = 158,079.70/x
  3. Step 3: Cross multiply
    631,394.39x = 947,090.76 × 158,079.70
  4. Step 4: Simplify right side
    631,394.39x = 149,715,818,478.12
  5. Step 5: Solve for x
    x = 149,715,818,478.12/631,394.39
  6. Step 6: Final answer
    x = 237,119.34

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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.