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Finding the Fourth Proportional to 509,151.88, 763,727.81 and 130,073.45

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Solution

The fourth proportional to 509,151.88, 763,727.81 and 130,073.45 is: 195,110.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,151.88 : 763,727.81 = 130,073.45 : x
  2. Step 2: Convert to fraction form
    509,151.88/763,727.81 = 130,073.45/x
  3. Step 3: Cross multiply
    509,151.88x = 763,727.81 × 130,073.45
  4. Step 4: Simplify right side
    509,151.88x = 99,340,706,638.64
  5. Step 5: Solve for x
    x = 99,340,706,638.64/509,151.88
  6. Step 6: Final answer
    x = 195,110.17

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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.