Home / 218,890.40-328,335.72-169,043.36

Finding the Fourth Proportional to 218,890.40, 328,335.72 and 169,043.36

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Solution

The fourth proportional to 218,890.40, 328,335.72 and 169,043.36 is: 253,565.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,890.40 : 328,335.72 = 169,043.36 : x
  2. Step 2: Convert to fraction form
    218,890.40/328,335.72 = 169,043.36/x
  3. Step 3: Cross multiply
    218,890.40x = 328,335.72 × 169,043.36
  4. Step 4: Simplify right side
    218,890.40x = 55,502,973,316.82
  5. Step 5: Solve for x
    x = 55,502,973,316.82/218,890.40
  6. Step 6: Final answer
    x = 253,565.13

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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.