Home / 387,711.50-581,567.25-107,228.75

Finding the Fourth Proportional to 387,711.50, 581,567.25 and 107,228.75

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Solution

The fourth proportional to 387,711.50, 581,567.25 and 107,228.75 is: 160,843.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,711.50 : 581,567.25 = 107,228.75 : x
  2. Step 2: Convert to fraction form
    387,711.50/581,567.25 = 107,228.75/x
  3. Step 3: Cross multiply
    387,711.50x = 581,567.25 × 107,228.75
  4. Step 4: Simplify right side
    387,711.50x = 62,360,729,258.44
  5. Step 5: Solve for x
    x = 62,360,729,258.44/387,711.50
  6. Step 6: Final answer
    x = 160,843.13

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1.5x scale

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.