Home / 310,439.68-428,332.02-181,304.92

Finding the Fourth Proportional to 310,439.68, 428,332.02 and 181,304.92

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Solution

The fourth proportional to 310,439.68, 428,332.02 and 181,304.92 is: 250,157.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,439.68 : 428,332.02 = 181,304.92 : x
  2. Step 2: Convert to fraction form
    310,439.68/428,332.02 = 181,304.92/x
  3. Step 3: Cross multiply
    310,439.68x = 428,332.02 × 181,304.92
  4. Step 4: Simplify right side
    310,439.68x = 77,658,702,619.54
  5. Step 5: Solve for x
    x = 77,658,702,619.54/310,439.68
  6. Step 6: Final answer
    x = 250,157.14

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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.