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Finding the Fourth Proportional to 512,535.95, 768,877.29 and 157,579.77

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Solution

The fourth proportional to 512,535.95, 768,877.29 and 157,579.77 is: 236,392.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,535.95 : 768,877.29 = 157,579.77 : x
  2. Step 2: Convert to fraction form
    512,535.95/768,877.29 = 157,579.77/x
  3. Step 3: Cross multiply
    512,535.95x = 768,877.29 × 157,579.77
  4. Step 4: Simplify right side
    512,535.95x = 121,159,506,516.42
  5. Step 5: Solve for x
    x = 121,159,506,516.42/512,535.95
  6. Step 6: Final answer
    x = 236,392.21

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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.