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Finding the Fourth Proportional to 201,497.90, 302,246.85 and 83,129.90

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Solution

The fourth proportional to 201,497.90, 302,246.85 and 83,129.90 is: 124,694.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,497.90 : 302,246.85 = 83,129.90 : x
  2. Step 2: Convert to fraction form
    201,497.90/302,246.85 = 83,129.90/x
  3. Step 3: Cross multiply
    201,497.90x = 302,246.85 × 83,129.90
  4. Step 4: Simplify right side
    201,497.90x = 25,125,750,415.82
  5. Step 5: Solve for x
    x = 25,125,750,415.82/201,497.90
  6. Step 6: Final answer
    x = 124,694.85

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1.5x scale

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.