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Finding the Fourth Proportional to 375,654.70, 518,400.57 and 205,888.42

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Solution

The fourth proportional to 375,654.70, 518,400.57 and 205,888.42 is: 284,124.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,654.70 : 518,400.57 = 205,888.42 : x
  2. Step 2: Convert to fraction form
    375,654.70/518,400.57 = 205,888.42/x
  3. Step 3: Cross multiply
    375,654.70x = 518,400.57 × 205,888.42
  4. Step 4: Simplify right side
    375,654.70x = 106,732,674,284.40
  5. Step 5: Solve for x
    x = 106,732,674,284.40/375,654.70
  6. Step 6: Final answer
    x = 284,124.42

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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.