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Finding the Fourth Proportional to 199,572.86, 299,407.13 and 66,454.32

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Solution

The fourth proportional to 199,572.86, 299,407.13 and 66,454.32 is: 99,697.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,572.86 : 299,407.13 = 66,454.32 : x
  2. Step 2: Convert to fraction form
    199,572.86/299,407.13 = 66,454.32/x
  3. Step 3: Cross multiply
    199,572.86x = 299,407.13 × 66,454.32
  4. Step 4: Simplify right side
    199,572.86x = 19,896,898,640.82
  5. Step 5: Solve for x
    x = 19,896,898,640.82/199,572.86
  6. Step 6: Final answer
    x = 99,697.42

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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.