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Finding the Fourth Proportional to 490,365.92, 735,547.80 and 130,536.86

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Solution

The fourth proportional to 490,365.92, 735,547.80 and 130,536.86 is: 195,805.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,365.92 : 735,547.80 = 130,536.86 : x
  2. Step 2: Convert to fraction form
    490,365.92/735,547.80 = 130,536.86/x
  3. Step 3: Cross multiply
    490,365.92x = 735,547.80 × 130,536.86
  4. Step 4: Simplify right side
    490,365.92x = 96,016,100,191.91
  5. Step 5: Solve for x
    x = 96,016,100,191.91/490,365.92
  6. Step 6: Final answer
    x = 195,805.00

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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.