Home / 387,464.50-581,289.90-134,708.05

Finding the Fourth Proportional to 387,464.50, 581,289.90 and 134,708.05

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Solution

The fourth proportional to 387,464.50, 581,289.90 and 134,708.05 is: 202,094.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,464.50 : 581,289.90 = 134,708.05 : x
  2. Step 2: Convert to fraction form
    387,464.50/581,289.90 = 134,708.05/x
  3. Step 3: Cross multiply
    387,464.50x = 581,289.90 × 134,708.05
  4. Step 4: Simplify right side
    387,464.50x = 78,304,428,913.70
  5. Step 5: Solve for x
    x = 78,304,428,913.70/387,464.50
  6. Step 6: Final answer
    x = 202,094.46

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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.