Home / 218,780.06-328,225.45-61,008.53

Finding the Fourth Proportional to 218,780.06, 328,225.45 and 61,008.53

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Solution

The fourth proportional to 218,780.06, 328,225.45 and 61,008.53 is: 91,528.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,780.06 : 328,225.45 = 61,008.53 : x
  2. Step 2: Convert to fraction form
    218,780.06/328,225.45 = 61,008.53/x
  3. Step 3: Cross multiply
    218,780.06x = 328,225.45 × 61,008.53
  4. Step 4: Simplify right side
    218,780.06x = 20,024,552,881.13
  5. Step 5: Solve for x
    x = 20,024,552,881.13/218,780.06
  6. Step 6: Final answer
    x = 91,528.23

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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.