Home / 260,376.30-390,564.45-127,341.90

Finding the Fourth Proportional to 260,376.30, 390,564.45 and 127,341.90

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Solution

The fourth proportional to 260,376.30, 390,564.45 and 127,341.90 is: 191,012.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,376.30 : 390,564.45 = 127,341.90 : x
  2. Step 2: Convert to fraction form
    260,376.30/390,564.45 = 127,341.90/x
  3. Step 3: Cross multiply
    260,376.30x = 390,564.45 × 127,341.90
  4. Step 4: Simplify right side
    260,376.30x = 49,735,219,135.46
  5. Step 5: Solve for x
    x = 49,735,219,135.46/260,376.30
  6. Step 6: Final answer
    x = 191,012.85

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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.