Home / 316,036.10-474,054.15-209,747.90

Finding the Fourth Proportional to 316,036.10, 474,054.15 and 209,747.90

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Solution

The fourth proportional to 316,036.10, 474,054.15 and 209,747.90 is: 314,621.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,036.10 : 474,054.15 = 209,747.90 : x
  2. Step 2: Convert to fraction form
    316,036.10/474,054.15 = 209,747.90/x
  3. Step 3: Cross multiply
    316,036.10x = 474,054.15 × 209,747.90
  4. Step 4: Simplify right side
    316,036.10x = 99,431,862,448.79
  5. Step 5: Solve for x
    x = 99,431,862,448.79/316,036.10
  6. Step 6: Final answer
    x = 314,621.85

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Similar ratio
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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.