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Finding the Fourth Proportional to 308,719.04, 426,020.64 and 174,585.92

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Solution

The fourth proportional to 308,719.04, 426,020.64 and 174,585.92 is: 240,921.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,719.04 : 426,020.64 = 174,585.92 : x
  2. Step 2: Convert to fraction form
    308,719.04/426,020.64 = 174,585.92/x
  3. Step 3: Cross multiply
    308,719.04x = 426,020.64 × 174,585.92
  4. Step 4: Simplify right side
    308,719.04x = 74,377,205,373.39
  5. Step 5: Solve for x
    x = 74,377,205,373.39/308,719.04
  6. Step 6: Final answer
    x = 240,921.99

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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.