Home / 216,012.59-324,006.75-66,252.47

Finding the Fourth Proportional to 216,012.59, 324,006.75 and 66,252.47

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Solution

The fourth proportional to 216,012.59, 324,006.75 and 66,252.47 is: 99,374.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,012.59 : 324,006.75 = 66,252.47 : x
  2. Step 2: Convert to fraction form
    216,012.59/324,006.75 = 66,252.47/x
  3. Step 3: Cross multiply
    216,012.59x = 324,006.75 × 66,252.47
  4. Step 4: Simplify right side
    216,012.59x = 21,466,245,864.14
  5. Step 5: Solve for x
    x = 21,466,245,864.14/216,012.59
  6. Step 6: Final answer
    x = 99,374.98

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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.