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Finding the Fourth Proportional to 452,775.79, 679,261.68 and 137,256.49

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Solution

The fourth proportional to 452,775.79, 679,261.68 and 137,256.49 is: 205,914.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,775.79 : 679,261.68 = 137,256.49 : x
  2. Step 2: Convert to fraction form
    452,775.79/679,261.68 = 137,256.49/x
  3. Step 3: Cross multiply
    452,775.79x = 679,261.68 × 137,256.49
  4. Step 4: Simplify right side
    452,775.79x = 93,233,073,988.30
  5. Step 5: Solve for x
    x = 93,233,073,988.30/452,775.79
  6. Step 6: Final answer
    x = 205,914.44

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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.