Home / 291,761.18-402,240.48-218,854.16

Finding the Fourth Proportional to 291,761.18, 402,240.48 and 218,854.16

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Solution

The fourth proportional to 291,761.18, 402,240.48 and 218,854.16 is: 301,726.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,761.18 : 402,240.48 = 218,854.16 : x
  2. Step 2: Convert to fraction form
    291,761.18/402,240.48 = 218,854.16/x
  3. Step 3: Cross multiply
    291,761.18x = 402,240.48 × 218,854.16
  4. Step 4: Simplify right side
    291,761.18x = 88,032,000,357.19
  5. Step 5: Solve for x
    x = 88,032,000,357.19/291,761.18
  6. Step 6: Final answer
    x = 301,726.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.