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Finding the Fourth Proportional to 864.01, 1,296.02 and 377.40

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Solution

The fourth proportional to 864.01, 1,296.02 and 377.40 is: 566.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    864.01 : 1,296.02 = 377.40 : x
  2. Step 2: Convert to fraction form
    864.01/1,296.02 = 377.40/x
  3. Step 3: Cross multiply
    864.01x = 1,296.02 × 377.40
  4. Step 4: Simplify right side
    864.01x = 489,123.75
  5. Step 5: Solve for x
    x = 489,123.75/864.01
  6. Step 6: Final answer
    x = 566.11

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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.