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Finding the Fourth Proportional to 508,722.30, 763,192.80 and 153,772.20

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Solution

The fourth proportional to 508,722.30, 763,192.80 and 153,772.20 is: 230,691.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,722.30 : 763,192.80 = 153,772.20 : x
  2. Step 2: Convert to fraction form
    508,722.30/763,192.80 = 153,772.20/x
  3. Step 3: Cross multiply
    508,722.30x = 763,192.80 × 153,772.20
  4. Step 4: Simplify right side
    508,722.30x = 117,357,835,880.16
  5. Step 5: Solve for x
    x = 117,357,835,880.16/508,722.30
  6. Step 6: Final answer
    x = 230,691.35

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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.