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Finding the Fourth Proportional to 308,370.34, 425,527.59 and 187,494.85

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Solution

The fourth proportional to 308,370.34, 425,527.59 and 187,494.85 is: 258,728.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,370.34 : 425,527.59 = 187,494.85 : x
  2. Step 2: Convert to fraction form
    308,370.34/425,527.59 = 187,494.85/x
  3. Step 3: Cross multiply
    308,370.34x = 425,527.59 × 187,494.85
  4. Step 4: Simplify right side
    308,370.34x = 79,784,231,657.91
  5. Step 5: Solve for x
    x = 79,784,231,657.91/308,370.34
  6. Step 6: Final answer
    x = 258,728.62

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1.5x scale

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.