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Finding the Fourth Proportional to 452,962.40, 679,270.80 and 137,314.40

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Solution

The fourth proportional to 452,962.40, 679,270.80 and 137,314.40 is: 205,919.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,962.40 : 679,270.80 = 137,314.40 : x
  2. Step 2: Convert to fraction form
    452,962.40/679,270.80 = 137,314.40/x
  3. Step 3: Cross multiply
    452,962.40x = 679,270.80 × 137,314.40
  4. Step 4: Simplify right side
    452,962.40x = 93,273,662,339.52
  5. Step 5: Solve for x
    x = 93,273,662,339.52/452,962.40
  6. Step 6: Final answer
    x = 205,919.22

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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.