Home / 201,718.30-302,577.45-138,732.70

Finding the Fourth Proportional to 201,718.30, 302,577.45 and 138,732.70

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Solution

The fourth proportional to 201,718.30, 302,577.45 and 138,732.70 is: 208,099.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,718.30 : 302,577.45 = 138,732.70 : x
  2. Step 2: Convert to fraction form
    201,718.30/302,577.45 = 138,732.70/x
  3. Step 3: Cross multiply
    201,718.30x = 302,577.45 × 138,732.70
  4. Step 4: Simplify right side
    201,718.30x = 41,977,386,597.62
  5. Step 5: Solve for x
    x = 41,977,386,597.62/201,718.30
  6. Step 6: Final answer
    x = 208,099.05

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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.