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Finding the Fourth Proportional to 540,376.95, 810,581.90 and 185,385.95

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Solution

The fourth proportional to 540,376.95, 810,581.90 and 185,385.95 is: 278,084.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,376.95 : 810,581.90 = 185,385.95 : x
  2. Step 2: Convert to fraction form
    540,376.95/810,581.90 = 185,385.95/x
  3. Step 3: Cross multiply
    540,376.95x = 810,581.90 × 185,385.95
  4. Step 4: Simplify right side
    540,376.95x = 150,270,490,604.47
  5. Step 5: Solve for x
    x = 150,270,490,604.47/540,376.95
  6. Step 6: Final answer
    x = 278,084.57

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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.