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Finding the Fourth Proportional to 393,480.10, 590,220.15 and 168,802.30

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Solution

The fourth proportional to 393,480.10, 590,220.15 and 168,802.30 is: 253,203.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,480.10 : 590,220.15 = 168,802.30 : x
  2. Step 2: Convert to fraction form
    393,480.10/590,220.15 = 168,802.30/x
  3. Step 3: Cross multiply
    393,480.10x = 590,220.15 × 168,802.30
  4. Step 4: Simplify right side
    393,480.10x = 99,630,518,826.35
  5. Step 5: Solve for x
    x = 99,630,518,826.35/393,480.10
  6. Step 6: Final answer
    x = 253,203.45

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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.