Home / 387,319.52-581,072.70-134,563.20

Finding the Fourth Proportional to 387,319.52, 581,072.70 and 134,563.20

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Solution

The fourth proportional to 387,319.52, 581,072.70 and 134,563.20 is: 201,877.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,319.52 : 581,072.70 = 134,563.20 : x
  2. Step 2: Convert to fraction form
    387,319.52/581,072.70 = 134,563.20/x
  3. Step 3: Cross multiply
    387,319.52x = 581,072.70 × 134,563.20
  4. Step 4: Simplify right side
    387,319.52x = 78,191,001,944.64
  5. Step 5: Solve for x
    x = 78,191,001,944.64/387,319.52
  6. Step 6: Final answer
    x = 201,877.26

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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.