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Finding the Fourth Proportional to 320,545.49, 480,393.51 and 170,462.61

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Solution

The fourth proportional to 320,545.49, 480,393.51 and 170,462.61 is: 255,468.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,545.49 : 480,393.51 = 170,462.61 : x
  2. Step 2: Convert to fraction form
    320,545.49/480,393.51 = 170,462.61/x
  3. Step 3: Cross multiply
    320,545.49x = 480,393.51 × 170,462.61
  4. Step 4: Simplify right side
    320,545.49x = 81,889,131,541.66
  5. Step 5: Solve for x
    x = 81,889,131,541.66/320,545.49
  6. Step 6: Final answer
    x = 255,468.05

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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.