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Finding the Fourth Proportional to 510,591.33, 765,915.80 and 155,616.93

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Solution

The fourth proportional to 510,591.33, 765,915.80 and 155,616.93 is: 233,434.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,591.33 : 765,915.80 = 155,616.93 : x
  2. Step 2: Convert to fraction form
    510,591.33/765,915.80 = 155,616.93/x
  3. Step 3: Cross multiply
    510,591.33x = 765,915.80 × 155,616.93
  4. Step 4: Simplify right side
    510,591.33x = 119,189,465,434.49
  5. Step 5: Solve for x
    x = 119,189,465,434.49/510,591.33
  6. Step 6: Final answer
    x = 233,434.17

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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.