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Finding the Fourth Proportional to 207,264.40, 310,666.20 and 88,915.60

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Solution

The fourth proportional to 207,264.40, 310,666.20 and 88,915.60 is: 133,274.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,264.40 : 310,666.20 = 88,915.60 : x
  2. Step 2: Convert to fraction form
    207,264.40/310,666.20 = 88,915.60/x
  3. Step 3: Cross multiply
    207,264.40x = 310,666.20 × 88,915.60
  4. Step 4: Simplify right side
    207,264.40x = 27,623,071,572.72
  5. Step 5: Solve for x
    x = 27,623,071,572.72/207,264.40
  6. Step 6: Final answer
    x = 133,274.56

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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.