Home / 208,456.24-312,681.07-66,299.47

Finding the Fourth Proportional to 208,456.24, 312,681.07 and 66,299.47

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Solution

The fourth proportional to 208,456.24, 312,681.07 and 66,299.47 is: 99,448.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,456.24 : 312,681.07 = 66,299.47 : x
  2. Step 2: Convert to fraction form
    208,456.24/312,681.07 = 66,299.47/x
  3. Step 3: Cross multiply
    208,456.24x = 312,681.07 × 66,299.47
  4. Step 4: Simplify right side
    208,456.24x = 20,730,589,220.03
  5. Step 5: Solve for x
    x = 20,730,589,220.03/208,456.24
  6. Step 6: Final answer
    x = 99,448.16

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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.