Home / 260,306.53-390,014.19-142,060.92

Finding the Fourth Proportional to 260,306.53, 390,014.19 and 142,060.92

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Solution

The fourth proportional to 260,306.53, 390,014.19 and 142,060.92 is: 212,848.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,306.53 : 390,014.19 = 142,060.92 : x
  2. Step 2: Convert to fraction form
    260,306.53/390,014.19 = 142,060.92/x
  3. Step 3: Cross multiply
    260,306.53x = 390,014.19 × 142,060.92
  4. Step 4: Simplify right side
    260,306.53x = 55,405,774,644.45
  5. Step 5: Solve for x
    x = 55,405,774,644.45/260,306.53
  6. Step 6: Final answer
    x = 212,848.19

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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.