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Finding the Fourth Proportional to 375,228.61, 517,816.35 and 203,148.40

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Solution

The fourth proportional to 375,228.61, 517,816.35 and 203,148.40 is: 280,345.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,228.61 : 517,816.35 = 203,148.40 : x
  2. Step 2: Convert to fraction form
    375,228.61/517,816.35 = 203,148.40/x
  3. Step 3: Cross multiply
    375,228.61x = 517,816.35 × 203,148.40
  4. Step 4: Simplify right side
    375,228.61x = 105,193,562,996.34
  5. Step 5: Solve for x
    x = 105,193,562,996.34/375,228.61
  6. Step 6: Final answer
    x = 280,345.26

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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.