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Finding the Fourth Proportional to 375,275.08, 517,875.72 and 203,190.08

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Solution

The fourth proportional to 375,275.08, 517,875.72 and 203,190.08 is: 280,400.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,275.08 : 517,875.72 = 203,190.08 : x
  2. Step 2: Convert to fraction form
    375,275.08/517,875.72 = 203,190.08/x
  3. Step 3: Cross multiply
    375,275.08x = 517,875.72 × 203,190.08
  4. Step 4: Simplify right side
    375,275.08x = 105,227,208,976.86
  5. Step 5: Solve for x
    x = 105,227,208,976.86/375,275.08
  6. Step 6: Final answer
    x = 280,400.21

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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.