Home / 268,253.24-402,442.14-78,705.96

Finding the Fourth Proportional to 268,253.24, 402,442.14 and 78,705.96

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Solution

The fourth proportional to 268,253.24, 402,442.14 and 78,705.96 is: 118,077.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,253.24 : 402,442.14 = 78,705.96 : x
  2. Step 2: Convert to fraction form
    268,253.24/402,442.14 = 78,705.96/x
  3. Step 3: Cross multiply
    268,253.24x = 402,442.14 × 78,705.96
  4. Step 4: Simplify right side
    268,253.24x = 31,674,594,973.15
  5. Step 5: Solve for x
    x = 31,674,594,973.15/268,253.24
  6. Step 6: Final answer
    x = 118,077.21

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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.