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Finding the Fourth Proportional to 199,242.64, 298,752.88 and 66,050.40

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Solution

The fourth proportional to 199,242.64, 298,752.88 and 66,050.40 is: 99,038.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,242.64 : 298,752.88 = 66,050.40 : x
  2. Step 2: Convert to fraction form
    199,242.64/298,752.88 = 66,050.40/x
  3. Step 3: Cross multiply
    199,242.64x = 298,752.88 × 66,050.40
  4. Step 4: Simplify right side
    199,242.64x = 19,732,747,225.15
  5. Step 5: Solve for x
    x = 19,732,747,225.15/199,242.64
  6. Step 6: Final answer
    x = 99,038.78

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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.