Home / 316,666.20-474,999.30-198,701.40

Finding the Fourth Proportional to 316,666.20, 474,999.30 and 198,701.40

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Solution

The fourth proportional to 316,666.20, 474,999.30 and 198,701.40 is: 298,052.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,666.20 : 474,999.30 = 198,701.40 : x
  2. Step 2: Convert to fraction form
    316,666.20/474,999.30 = 198,701.40/x
  3. Step 3: Cross multiply
    316,666.20x = 474,999.30 × 198,701.40
  4. Step 4: Simplify right side
    316,666.20x = 94,383,025,909.02
  5. Step 5: Solve for x
    x = 94,383,025,909.02/316,666.20
  6. Step 6: Final answer
    x = 298,052.10

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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.