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Finding the Fourth Proportional to 345,330.72, 518,005.80 and 96,012.72

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Solution

The fourth proportional to 345,330.72, 518,005.80 and 96,012.72 is: 144,021.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,330.72 : 518,005.80 = 96,012.72 : x
  2. Step 2: Convert to fraction form
    345,330.72/518,005.80 = 96,012.72/x
  3. Step 3: Cross multiply
    345,330.72x = 518,005.80 × 96,012.72
  4. Step 4: Simplify right side
    345,330.72x = 49,735,145,833.78
  5. Step 5: Solve for x
    x = 49,735,145,833.78/345,330.72
  6. Step 6: Final answer
    x = 144,021.78

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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.