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Finding the Fourth Proportional to 266,535.60, 399,872.58 and 79,547.10

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Solution

The fourth proportional to 266,535.60, 399,872.58 and 79,547.10 is: 119,341.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,535.60 : 399,872.58 = 79,547.10 : x
  2. Step 2: Convert to fraction form
    266,535.60/399,872.58 = 79,547.10/x
  3. Step 3: Cross multiply
    266,535.60x = 399,872.58 × 79,547.10
  4. Step 4: Simplify right side
    266,535.60x = 31,808,704,108.52
  5. Step 5: Solve for x
    x = 31,808,704,108.52/266,535.60
  6. Step 6: Final answer
    x = 119,341.30

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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.