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Finding the Fourth Proportional to 252,510.90, 378,766.35 and 65,522.40

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Solution

The fourth proportional to 252,510.90, 378,766.35 and 65,522.40 is: 98,283.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,510.90 : 378,766.35 = 65,522.40 : x
  2. Step 2: Convert to fraction form
    252,510.90/378,766.35 = 65,522.40/x
  3. Step 3: Cross multiply
    252,510.90x = 378,766.35 × 65,522.40
  4. Step 4: Simplify right side
    252,510.90x = 24,817,680,291.24
  5. Step 5: Solve for x
    x = 24,817,680,291.24/252,510.90
  6. Step 6: Final answer
    x = 98,283.60

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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.