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Finding the Fourth Proportional to 369,489.60, 509,198.91 and 267,342.12

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Solution

The fourth proportional to 369,489.60, 509,198.91 and 267,342.12 is: 368,428.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,489.60 : 509,198.91 = 267,342.12 : x
  2. Step 2: Convert to fraction form
    369,489.60/509,198.91 = 267,342.12/x
  3. Step 3: Cross multiply
    369,489.60x = 509,198.91 × 267,342.12
  4. Step 4: Simplify right side
    369,489.60x = 136,130,315,098.56
  5. Step 5: Solve for x
    x = 136,130,315,098.56/369,489.60
  6. Step 6: Final answer
    x = 368,428.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.