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Finding the Fourth Proportional to 540,085.20, 810,242.52 and 185,003.88

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Solution

The fourth proportional to 540,085.20, 810,242.52 and 185,003.88 is: 277,545.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,085.20 : 810,242.52 = 185,003.88 : x
  2. Step 2: Convert to fraction form
    540,085.20/810,242.52 = 185,003.88/x
  3. Step 3: Cross multiply
    540,085.20x = 810,242.52 × 185,003.88
  4. Step 4: Simplify right side
    540,085.20x = 149,898,009,940.98
  5. Step 5: Solve for x
    x = 149,898,009,940.98/540,085.20
  6. Step 6: Final answer
    x = 277,545.12

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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.