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Finding the Fourth Proportional to 452,925.68, 679,485.11 and 153,395.78

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Solution

The fourth proportional to 452,925.68, 679,485.11 and 153,395.78 is: 230,126.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,925.68 : 679,485.11 = 153,395.78 : x
  2. Step 2: Convert to fraction form
    452,925.68/679,485.11 = 153,395.78/x
  3. Step 3: Cross multiply
    452,925.68x = 679,485.11 × 153,395.78
  4. Step 4: Simplify right side
    452,925.68x = 104,230,144,282.43
  5. Step 5: Solve for x
    x = 104,230,144,282.43/452,925.68
  6. Step 6: Final answer
    x = 230,126.38

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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.