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Finding the Fourth Proportional to 369,490.60, 509,200.28 and 267,343.12

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Solution

The fourth proportional to 369,490.60, 509,200.28 and 267,343.12 is: 368,429.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,490.60 : 509,200.28 = 267,343.12 : x
  2. Step 2: Convert to fraction form
    369,490.60/509,200.28 = 267,343.12/x
  3. Step 3: Cross multiply
    369,490.60x = 509,200.28 × 267,343.12
  4. Step 4: Simplify right side
    369,490.60x = 136,131,191,560.07
  5. Step 5: Solve for x
    x = 136,131,191,560.07/369,490.60
  6. Step 6: Final answer
    x = 368,429.38

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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.