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Finding the Fourth Proportional to 247,802.76, 371,702.90 and 70,310.10

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Solution

The fourth proportional to 247,802.76, 371,702.90 and 70,310.10 is: 105,464.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,802.76 : 371,702.90 = 70,310.10 : x
  2. Step 2: Convert to fraction form
    247,802.76/371,702.90 = 70,310.10/x
  3. Step 3: Cross multiply
    247,802.76x = 371,702.90 × 70,310.10
  4. Step 4: Simplify right side
    247,802.76x = 26,134,468,069.29
  5. Step 5: Solve for x
    x = 26,134,468,069.29/247,802.76
  6. Step 6: Final answer
    x = 105,464.80

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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.