Home / 316,985.20-437,484.38-196,165.40

Finding the Fourth Proportional to 316,985.20, 437,484.38 and 196,165.40

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Solution

The fourth proportional to 316,985.20, 437,484.38 and 196,165.40 is: 270,735.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,985.20 : 437,484.38 = 196,165.40 : x
  2. Step 2: Convert to fraction form
    316,985.20/437,484.38 = 196,165.40/x
  3. Step 3: Cross multiply
    316,985.20x = 437,484.38 × 196,165.40
  4. Step 4: Simplify right side
    316,985.20x = 85,819,295,228.20
  5. Step 5: Solve for x
    x = 85,819,295,228.20/316,985.20
  6. Step 6: Final answer
    x = 270,735.97

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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.