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Finding the Fourth Proportional to 201,979.70, 302,775.15 and 156,976.10

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Solution

The fourth proportional to 201,979.70, 302,775.15 and 156,976.10 is: 235,313.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,979.70 : 302,775.15 = 156,976.10 : x
  2. Step 2: Convert to fraction form
    201,979.70/302,775.15 = 156,976.10/x
  3. Step 3: Cross multiply
    201,979.70x = 302,775.15 × 156,976.10
  4. Step 4: Simplify right side
    201,979.70x = 47,528,462,223.92
  5. Step 5: Solve for x
    x = 47,528,462,223.92/201,979.70
  6. Step 6: Final answer
    x = 235,313.06

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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.