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Finding the Fourth Proportional to 216,555.31, 324,678.66 and 83,323.27

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Solution

The fourth proportional to 216,555.31, 324,678.66 and 83,323.27 is: 124,925.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,555.31 : 324,678.66 = 83,323.27 : x
  2. Step 2: Convert to fraction form
    216,555.31/324,678.66 = 83,323.27/x
  3. Step 3: Cross multiply
    216,555.31x = 324,678.66 × 83,323.27
  4. Step 4: Simplify right side
    216,555.31x = 27,053,287,650.42
  5. Step 5: Solve for x
    x = 27,053,287,650.42/216,555.31
  6. Step 6: Final answer
    x = 124,925.53

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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.