Home / 389,831.32-584,796.18-137,052.40

Finding the Fourth Proportional to 389,831.32, 584,796.18 and 137,052.40

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Solution

The fourth proportional to 389,831.32, 584,796.18 and 137,052.40 is: 205,595.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,831.32 : 584,796.18 = 137,052.40 : x
  2. Step 2: Convert to fraction form
    389,831.32/584,796.18 = 137,052.40/x
  3. Step 3: Cross multiply
    389,831.32x = 584,796.18 × 137,052.40
  4. Step 4: Simplify right side
    389,831.32x = 80,147,719,979.83
  5. Step 5: Solve for x
    x = 80,147,719,979.83/389,831.32
  6. Step 6: Final answer
    x = 205,595.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.