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Finding the Fourth Proportional to 247,574.40, 371,507.40 and 89,818.80

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Solution

The fourth proportional to 247,574.40, 371,507.40 and 89,818.80 is: 134,781.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,574.40 : 371,507.40 = 89,818.80 : x
  2. Step 2: Convert to fraction form
    247,574.40/371,507.40 = 89,818.80/x
  3. Step 3: Cross multiply
    247,574.40x = 371,507.40 × 89,818.80
  4. Step 4: Simplify right side
    247,574.40x = 33,368,348,859.12
  5. Step 5: Solve for x
    x = 33,368,348,859.12/247,574.40
  6. Step 6: Final answer
    x = 134,781.10

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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.