Home / 387,659.39-581,848.90-198,255.11

Finding the Fourth Proportional to 387,659.39, 581,848.90 and 198,255.11

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Solution

The fourth proportional to 387,659.39, 581,848.90 and 198,255.11 is: 297,566.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,659.39 : 581,848.90 = 198,255.11 : x
  2. Step 2: Convert to fraction form
    387,659.39/581,848.90 = 198,255.11/x
  3. Step 3: Cross multiply
    387,659.39x = 581,848.90 × 198,255.11
  4. Step 4: Simplify right side
    387,659.39x = 115,354,514,268.00
  5. Step 5: Solve for x
    x = 115,354,514,268.00/387,659.39
  6. Step 6: Final answer
    x = 297,566.68

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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.