Home / 218,938.14-328,407.21-52,726.14

Finding the Fourth Proportional to 218,938.14, 328,407.21 and 52,726.14

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Solution

The fourth proportional to 218,938.14, 328,407.21 and 52,726.14 is: 79,089.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,938.14 : 328,407.21 = 52,726.14 : x
  2. Step 2: Convert to fraction form
    218,938.14/328,407.21 = 52,726.14/x
  3. Step 3: Cross multiply
    218,938.14x = 328,407.21 × 52,726.14
  4. Step 4: Simplify right side
    218,938.14x = 17,315,644,531.47
  5. Step 5: Solve for x
    x = 17,315,644,531.47/218,938.14
  6. Step 6: Final answer
    x = 79,089.21

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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.