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Finding the Fourth Proportional to 510,909.64, 766,364.38 and 155,925.48

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Solution

The fourth proportional to 510,909.64, 766,364.38 and 155,925.48 is: 233,888.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,909.64 : 766,364.38 = 155,925.48 : x
  2. Step 2: Convert to fraction form
    510,909.64/766,364.38 = 155,925.48/x
  3. Step 3: Cross multiply
    510,909.64x = 766,364.38 × 155,925.48
  4. Step 4: Simplify right side
    510,909.64x = 119,495,733,806.40
  5. Step 5: Solve for x
    x = 119,495,733,806.40/510,909.64
  6. Step 6: Final answer
    x = 233,888.20

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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.