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Finding the Fourth Proportional to 308,295.03, 425,060 and 235,786.87

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Solution

The fourth proportional to 308,295.03, 425,060 and 235,786.87 is: 325,089.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,295.03 : 425,060 = 235,786.87 : x
  2. Step 2: Convert to fraction form
    308,295.03/425,060 = 235,786.87/x
  3. Step 3: Cross multiply
    308,295.03x = 425,060 × 235,786.87
  4. Step 4: Simplify right side
    308,295.03x = 100,223,566,962.20
  5. Step 5: Solve for x
    x = 100,223,566,962.20/308,295.03
  6. Step 6: Final answer
    x = 325,089.79

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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.