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Finding the Fourth Proportional to 247,280.80, 371,018.40 and 97,495.60

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Solution

The fourth proportional to 247,280.80, 371,018.40 and 97,495.60 is: 146,281.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,280.80 : 371,018.40 = 97,495.60 : x
  2. Step 2: Convert to fraction form
    247,280.80/371,018.40 = 97,495.60/x
  3. Step 3: Cross multiply
    247,280.80x = 371,018.40 × 97,495.60
  4. Step 4: Simplify right side
    247,280.80x = 36,172,661,519.04
  5. Step 5: Solve for x
    x = 36,172,661,519.04/247,280.80
  6. Step 6: Final answer
    x = 146,281.72

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1.5x scale

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.