Home / 387,463.50-581,288.40-134,707.05

Finding the Fourth Proportional to 387,463.50, 581,288.40 and 134,707.05

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Solution

The fourth proportional to 387,463.50, 581,288.40 and 134,707.05 is: 202,092.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,463.50 : 581,288.40 = 134,707.05 : x
  2. Step 2: Convert to fraction form
    387,463.50/581,288.40 = 134,707.05/x
  3. Step 3: Cross multiply
    387,463.50x = 581,288.40 × 134,707.05
  4. Step 4: Simplify right side
    387,463.50x = 78,303,645,563.22
  5. Step 5: Solve for x
    x = 78,303,645,563.22/387,463.50
  6. Step 6: Final answer
    x = 202,092.96

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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.