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Finding the Fourth Proportional to 375,340.11, 517,970.76 and 203,258.15

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Solution

The fourth proportional to 375,340.11, 517,970.76 and 203,258.15 is: 280,497.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,340.11 : 517,970.76 = 203,258.15 : x
  2. Step 2: Convert to fraction form
    375,340.11/517,970.76 = 203,258.15/x
  3. Step 3: Cross multiply
    375,340.11x = 517,970.76 × 203,258.15
  4. Step 4: Simplify right side
    375,340.11x = 105,281,779,726.62
  5. Step 5: Solve for x
    x = 105,281,779,726.62/375,340.11
  6. Step 6: Final answer
    x = 280,497.01

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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.