Home / 201,631.10-302,543.85-142,339.10

Finding the Fourth Proportional to 201,631.10, 302,543.85 and 142,339.10

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Solution

The fourth proportional to 201,631.10, 302,543.85 and 142,339.10 is: 213,577.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,631.10 : 302,543.85 = 142,339.10 : x
  2. Step 2: Convert to fraction form
    201,631.10/302,543.85 = 142,339.10/x
  3. Step 3: Cross multiply
    201,631.10x = 302,543.85 × 142,339.10
  4. Step 4: Simplify right side
    201,631.10x = 43,063,819,319.54
  5. Step 5: Solve for x
    x = 43,063,819,319.54/201,631.10
  6. Step 6: Final answer
    x = 213,577.27

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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.