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Finding the Fourth Proportional to 375,409.96, 517,650.62 and 239,228.20

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Solution

The fourth proportional to 375,409.96, 517,650.62 and 239,228.20 is: 329,870.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,409.96 : 517,650.62 = 239,228.20 : x
  2. Step 2: Convert to fraction form
    375,409.96/517,650.62 = 239,228.20/x
  3. Step 3: Cross multiply
    375,409.96x = 517,650.62 × 239,228.20
  4. Step 4: Simplify right side
    375,409.96x = 123,836,626,051.48
  5. Step 5: Solve for x
    x = 123,836,626,051.48/375,409.96
  6. Step 6: Final answer
    x = 329,870.38

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1.5x scale

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.