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Finding the Fourth Proportional to 216,573.29, 324,887.93 and 83,491.61

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Solution

The fourth proportional to 216,573.29, 324,887.93 and 83,491.61 is: 125,248.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,573.29 : 324,887.93 = 83,491.61 : x
  2. Step 2: Convert to fraction form
    216,573.29/324,887.93 = 83,491.61/x
  3. Step 3: Cross multiply
    216,573.29x = 324,887.93 × 83,491.61
  4. Step 4: Simplify right side
    216,573.29x = 27,125,414,303.37
  5. Step 5: Solve for x
    x = 27,125,414,303.37/216,573.29
  6. Step 6: Final answer
    x = 125,248.20

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1.5x scale

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.