Home / 380,256.13-570,366.88-127,517.19

Finding the Fourth Proportional to 380,256.13, 570,366.88 and 127,517.19

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Solution

The fourth proportional to 380,256.13, 570,366.88 and 127,517.19 is: 191,269.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,256.13 : 570,366.88 = 127,517.19 : x
  2. Step 2: Convert to fraction form
    380,256.13/570,366.88 = 127,517.19/x
  3. Step 3: Cross multiply
    380,256.13x = 570,366.88 × 127,517.19
  4. Step 4: Simplify right side
    380,256.13x = 72,731,581,806.67
  5. Step 5: Solve for x
    x = 72,731,581,806.67/380,256.13
  6. Step 6: Final answer
    x = 191,269.98

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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.