Home / 557,613.36-836,436.48-136,889.28

Finding the Fourth Proportional to 557,613.36, 836,436.48 and 136,889.28

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Solution

The fourth proportional to 557,613.36, 836,436.48 and 136,889.28 is: 205,337.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,613.36 : 836,436.48 = 136,889.28 : x
  2. Step 2: Convert to fraction form
    557,613.36/836,436.48 = 136,889.28/x
  3. Step 3: Cross multiply
    557,613.36x = 836,436.48 × 136,889.28
  4. Step 4: Simplify right side
    557,613.36x = 114,499,187,512.93
  5. Step 5: Solve for x
    x = 114,499,187,512.93/557,613.36
  6. Step 6: Final answer
    x = 205,337.96

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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.