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Finding the Fourth Proportional to 329,065.76, 493,598.66 and 79,747.76

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Solution

The fourth proportional to 329,065.76, 493,598.66 and 79,747.76 is: 119,621.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,065.76 : 493,598.66 = 79,747.76 : x
  2. Step 2: Convert to fraction form
    329,065.76/493,598.66 = 79,747.76/x
  3. Step 3: Cross multiply
    329,065.76x = 493,598.66 × 79,747.76
  4. Step 4: Simplify right side
    329,065.76x = 39,363,387,075.26
  5. Step 5: Solve for x
    x = 39,363,387,075.26/329,065.76
  6. Step 6: Final answer
    x = 119,621.64

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Similar ratio
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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.