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Finding the Fourth Proportional to 329,095.13, 493,642.69 and 79,777.13

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Solution

The fourth proportional to 329,095.13, 493,642.69 and 79,777.13 is: 119,665.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,095.13 : 493,642.69 = 79,777.13 : x
  2. Step 2: Convert to fraction form
    329,095.13/493,642.69 = 79,777.13/x
  3. Step 3: Cross multiply
    329,095.13x = 493,642.69 × 79,777.13
  4. Step 4: Simplify right side
    329,095.13x = 39,381,394,386.02
  5. Step 5: Solve for x
    x = 39,381,394,386.02/329,095.13
  6. Step 6: Final answer
    x = 119,665.69

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1.5x scale

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.