Home / 376,259.40-563,514.30-257,286.60

Finding the Fourth Proportional to 376,259.40, 563,514.30 and 257,286.60

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Solution

The fourth proportional to 376,259.40, 563,514.30 and 257,286.60 is: 385,331.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,259.40 : 563,514.30 = 257,286.60 : x
  2. Step 2: Convert to fraction form
    376,259.40/563,514.30 = 257,286.60/x
  3. Step 3: Cross multiply
    376,259.40x = 563,514.30 × 257,286.60
  4. Step 4: Simplify right side
    376,259.40x = 144,984,678,298.38
  5. Step 5: Solve for x
    x = 144,984,678,298.38/376,259.40
  6. Step 6: Final answer
    x = 385,331.71

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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.