Home / 268,985.20-403,530.96-79,448.86

Finding the Fourth Proportional to 268,985.20, 403,530.96 and 79,448.86

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Solution

The fourth proportional to 268,985.20, 403,530.96 and 79,448.86 is: 119,188.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,985.20 : 403,530.96 = 79,448.86 : x
  2. Step 2: Convert to fraction form
    268,985.20/403,530.96 = 79,448.86/x
  3. Step 3: Cross multiply
    268,985.20x = 403,530.96 × 79,448.86
  4. Step 4: Simplify right side
    268,985.20x = 32,060,074,746.71
  5. Step 5: Solve for x
    x = 32,060,074,746.71/268,985.20
  6. Step 6: Final answer
    x = 119,188.99

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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.