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Finding the Fourth Proportional to 247,810.12, 371,715.47 and 67,897.08

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Solution

The fourth proportional to 247,810.12, 371,715.47 and 67,897.08 is: 101,845.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,810.12 : 371,715.47 = 67,897.08 : x
  2. Step 2: Convert to fraction form
    247,810.12/371,715.47 = 67,897.08/x
  3. Step 3: Cross multiply
    247,810.12x = 371,715.47 × 67,897.08
  4. Step 4: Simplify right side
    247,810.12x = 25,238,392,805.76
  5. Step 5: Solve for x
    x = 25,238,392,805.76/247,810.12
  6. Step 6: Final answer
    x = 101,845.69

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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.