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Finding the Fourth Proportional to 370,490.80, 555,145.56 and 237,261.40

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Solution

The fourth proportional to 370,490.80, 555,145.56 and 237,261.40 is: 355,513.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,490.80 : 555,145.56 = 237,261.40 : x
  2. Step 2: Convert to fraction form
    370,490.80/555,145.56 = 237,261.40/x
  3. Step 3: Cross multiply
    370,490.80x = 555,145.56 × 237,261.40
  4. Step 4: Simplify right side
    370,490.80x = 131,714,612,769.38
  5. Step 5: Solve for x
    x = 131,714,612,769.38/370,490.80
  6. Step 6: Final answer
    x = 355,513.86

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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.