Home / 252,421.80-348,315.12-139,244.52

Finding the Fourth Proportional to 252,421.80, 348,315.12 and 139,244.52

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Solution

The fourth proportional to 252,421.80, 348,315.12 and 139,244.52 is: 192,142.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,421.80 : 348,315.12 = 139,244.52 : x
  2. Step 2: Convert to fraction form
    252,421.80/348,315.12 = 139,244.52/x
  3. Step 3: Cross multiply
    252,421.80x = 348,315.12 × 139,244.52
  4. Step 4: Simplify right side
    252,421.80x = 48,500,971,693.14
  5. Step 5: Solve for x
    x = 48,500,971,693.14/252,421.80
  6. Step 6: Final answer
    x = 192,142.56

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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.