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Finding the Fourth Proportional to 485,898.32, 728,852.34 and 170,362.82

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Solution

The fourth proportional to 485,898.32, 728,852.34 and 170,362.82 is: 255,545.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,898.32 : 728,852.34 = 170,362.82 : x
  2. Step 2: Convert to fraction form
    485,898.32/728,852.34 = 170,362.82/x
  3. Step 3: Cross multiply
    485,898.32x = 728,852.34 × 170,362.82
  4. Step 4: Simplify right side
    485,898.32x = 124,169,340,006.00
  5. Step 5: Solve for x
    x = 124,169,340,006.00/485,898.32
  6. Step 6: Final answer
    x = 255,545.93

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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.