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Finding the Fourth Proportional to 308,380.42, 425,541.63 and 187,504.93

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Solution

The fourth proportional to 308,380.42, 425,541.63 and 187,504.93 is: 258,742.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,380.42 : 425,541.63 = 187,504.93 : x
  2. Step 2: Convert to fraction form
    308,380.42/425,541.63 = 187,504.93/x
  3. Step 3: Cross multiply
    308,380.42x = 425,541.63 × 187,504.93
  4. Step 4: Simplify right side
    308,380.42x = 79,791,153,545.24
  5. Step 5: Solve for x
    x = 79,791,153,545.24/308,380.42
  6. Step 6: Final answer
    x = 258,742.61

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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.