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Finding the Fourth Proportional to 660,536.80, 990,610.72 and 187,263.52

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Solution

The fourth proportional to 660,536.80, 990,610.72 and 187,263.52 is: 280,840.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,536.80 : 990,610.72 = 187,263.52 : x
  2. Step 2: Convert to fraction form
    660,536.80/990,610.72 = 187,263.52/x
  3. Step 3: Cross multiply
    660,536.80x = 990,610.72 × 187,263.52
  4. Step 4: Simplify right side
    660,536.80x = 185,505,250,376.93
  5. Step 5: Solve for x
    x = 185,505,250,376.93/660,536.80
  6. Step 6: Final answer
    x = 280,840.14

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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.