Home / 268,909.12-403,430.10-111,182.68

Finding the Fourth Proportional to 268,909.12, 403,430.10 and 111,182.68

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Solution

The fourth proportional to 268,909.12, 403,430.10 and 111,182.68 is: 166,801.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,909.12 : 403,430.10 = 111,182.68 : x
  2. Step 2: Convert to fraction form
    268,909.12/403,430.10 = 111,182.68/x
  3. Step 3: Cross multiply
    268,909.12x = 403,430.10 × 111,182.68
  4. Step 4: Simplify right side
    268,909.12x = 44,854,439,710.67
  5. Step 5: Solve for x
    x = 44,854,439,710.67/268,909.12
  6. Step 6: Final answer
    x = 166,801.48

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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.