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Finding the Fourth Proportional to 356,425.30, 534,737.04 and 289,700.20

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Solution

The fourth proportional to 356,425.30, 534,737.04 and 289,700.20 is: 434,630.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,425.30 : 534,737.04 = 289,700.20 : x
  2. Step 2: Convert to fraction form
    356,425.30/534,737.04 = 289,700.20/x
  3. Step 3: Cross multiply
    356,425.30x = 534,737.04 × 289,700.20
  4. Step 4: Simplify right side
    356,425.30x = 154,913,427,435.41
  5. Step 5: Solve for x
    x = 154,913,427,435.41/356,425.30
  6. Step 6: Final answer
    x = 434,630.84

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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.