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Finding the Fourth Proportional to 510,529.32, 765,908.19 and 155,571.12

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Solution

The fourth proportional to 510,529.32, 765,908.19 and 155,571.12 is: 233,391.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,529.32 : 765,908.19 = 155,571.12 : x
  2. Step 2: Convert to fraction form
    510,529.32/765,908.19 = 155,571.12/x
  3. Step 3: Cross multiply
    510,529.32x = 765,908.19 × 155,571.12
  4. Step 4: Simplify right side
    510,529.32x = 119,153,194,935.47
  5. Step 5: Solve for x
    x = 119,153,194,935.47/510,529.32
  6. Step 6: Final answer
    x = 233,391.48

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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.