Home / 268,835.91-403,254.81-79,298.61

Finding the Fourth Proportional to 268,835.91, 403,254.81 and 79,298.61

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Solution

The fourth proportional to 268,835.91, 403,254.81 and 79,298.61 is: 118,948.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,835.91 : 403,254.81 = 79,298.61 : x
  2. Step 2: Convert to fraction form
    268,835.91/403,254.81 = 79,298.61/x
  3. Step 3: Cross multiply
    268,835.91x = 403,254.81 × 79,298.61
  4. Step 4: Simplify right side
    268,835.91x = 31,977,545,908.81
  5. Step 5: Solve for x
    x = 31,977,545,908.81/268,835.91
  6. Step 6: Final answer
    x = 118,948.19

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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.