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Finding the Fourth Proportional to 491,302.80, 736,871.76 and 136,352.88

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Solution

The fourth proportional to 491,302.80, 736,871.76 and 136,352.88 is: 204,506.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,302.80 : 736,871.76 = 136,352.88 : x
  2. Step 2: Convert to fraction form
    491,302.80/736,871.76 = 136,352.88/x
  3. Step 3: Cross multiply
    491,302.80x = 736,871.76 × 136,352.88
  4. Step 4: Simplify right side
    491,302.80x = 100,474,586,666.67
  5. Step 5: Solve for x
    x = 100,474,586,666.67/491,302.80
  6. Step 6: Final answer
    x = 204,506.44

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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.