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Finding the Fourth Proportional to 485,847.81, 670,454.15 and 265,076.91

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Solution

The fourth proportional to 485,847.81, 670,454.15 and 265,076.91 is: 365,797.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,847.81 : 670,454.15 = 265,076.91 : x
  2. Step 2: Convert to fraction form
    485,847.81/670,454.15 = 265,076.91/x
  3. Step 3: Cross multiply
    485,847.81x = 670,454.15 × 265,076.91
  4. Step 4: Simplify right side
    485,847.81x = 177,721,913,053.29
  5. Step 5: Solve for x
    x = 177,721,913,053.29/485,847.81
  6. Step 6: Final answer
    x = 365,797.50

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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.