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Finding the Fourth Proportional to 438,969.66, 658,449.69 and 106,545.66

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Solution

The fourth proportional to 438,969.66, 658,449.69 and 106,545.66 is: 159,817.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,969.66 : 658,449.69 = 106,545.66 : x
  2. Step 2: Convert to fraction form
    438,969.66/658,449.69 = 106,545.66/x
  3. Step 3: Cross multiply
    438,969.66x = 658,449.69 × 106,545.66
  4. Step 4: Simplify right side
    438,969.66x = 70,154,956,797.85
  5. Step 5: Solve for x
    x = 70,154,956,797.85/438,969.66
  6. Step 6: Final answer
    x = 159,817.32

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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.