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Finding the Fourth Proportional to 376,426.60, 564,035.10 and 198,701.80

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Solution

The fourth proportional to 376,426.60, 564,035.10 and 198,701.80 is: 297,733.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,426.60 : 564,035.10 = 198,701.80 : x
  2. Step 2: Convert to fraction form
    376,426.60/564,035.10 = 198,701.80/x
  3. Step 3: Cross multiply
    376,426.60x = 564,035.10 × 198,701.80
  4. Step 4: Simplify right side
    376,426.60x = 112,074,789,633.18
  5. Step 5: Solve for x
    x = 112,074,789,633.18/376,426.60
  6. Step 6: Final answer
    x = 297,733.45

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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.