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Finding the Fourth Proportional to 328,649.20, 453,535.86 and 177,746.20

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Solution

The fourth proportional to 328,649.20, 453,535.86 and 177,746.20 is: 245,289.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,649.20 : 453,535.86 = 177,746.20 : x
  2. Step 2: Convert to fraction form
    328,649.20/453,535.86 = 177,746.20/x
  3. Step 3: Cross multiply
    328,649.20x = 453,535.86 × 177,746.20
  4. Step 4: Simplify right side
    328,649.20x = 80,614,275,678.73
  5. Step 5: Solve for x
    x = 80,614,275,678.73/328,649.20
  6. Step 6: Final answer
    x = 245,289.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.