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Finding the Fourth Proportional to 247,276.80, 371,012.40 and 97,491.60

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Solution

The fourth proportional to 247,276.80, 371,012.40 and 97,491.60 is: 146,275.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,276.80 : 371,012.40 = 97,491.60 : x
  2. Step 2: Convert to fraction form
    247,276.80/371,012.40 = 97,491.60/x
  3. Step 3: Cross multiply
    247,276.80x = 371,012.40 × 97,491.60
  4. Step 4: Simplify right side
    247,276.80x = 36,170,592,495.84
  5. Step 5: Solve for x
    x = 36,170,592,495.84/247,276.80
  6. Step 6: Final answer
    x = 146,275.72

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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.