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Finding the Fourth Proportional to 375,358.56, 517,947.48 and 299,070.96

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Solution

The fourth proportional to 375,358.56, 517,947.48 and 299,070.96 is: 412,680.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,358.56 : 517,947.48 = 299,070.96 : x
  2. Step 2: Convert to fraction form
    375,358.56/517,947.48 = 299,070.96/x
  3. Step 3: Cross multiply
    375,358.56x = 517,947.48 × 299,070.96
  4. Step 4: Simplify right side
    375,358.56x = 154,903,050,073.18
  5. Step 5: Solve for x
    x = 154,903,050,073.18/375,358.56
  6. Step 6: Final answer
    x = 412,680.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.