Home / 218,871.24-328,307.22-125,312.28

Finding the Fourth Proportional to 218,871.24, 328,307.22 and 125,312.28

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Solution

The fourth proportional to 218,871.24, 328,307.22 and 125,312.28 is: 187,968.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,871.24 : 328,307.22 = 125,312.28 : x
  2. Step 2: Convert to fraction form
    218,871.24/328,307.22 = 125,312.28/x
  3. Step 3: Cross multiply
    218,871.24x = 328,307.22 × 125,312.28
  4. Step 4: Simplify right side
    218,871.24x = 41,140,926,278.66
  5. Step 5: Solve for x
    x = 41,140,926,278.66/218,871.24
  6. Step 6: Final answer
    x = 187,968.63

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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.