Home / 218,870.18-328,234.19-83,927.15

Finding the Fourth Proportional to 218,870.18, 328,234.19 and 83,927.15

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Solution

The fourth proportional to 218,870.18, 328,234.19 and 83,927.15 is: 125,863.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,870.18 : 328,234.19 = 83,927.15 : x
  2. Step 2: Convert to fraction form
    218,870.18/328,234.19 = 83,927.15/x
  3. Step 3: Cross multiply
    218,870.18x = 328,234.19 × 83,927.15
  4. Step 4: Simplify right side
    218,870.18x = 27,547,759,848.93
  5. Step 5: Solve for x
    x = 27,547,759,848.93/218,870.18
  6. Step 6: Final answer
    x = 125,863.47

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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.