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Finding the Fourth Proportional to 875.00, 1,311.53 and 354.93

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Solution

The fourth proportional to 875.00, 1,311.53 and 354.93 is: 532.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    875.00 : 1,311.53 = 354.93 : x
  2. Step 2: Convert to fraction form
    875.00/1,311.53 = 354.93/x
  3. Step 3: Cross multiply
    875.00x = 1,311.53 × 354.93
  4. Step 4: Simplify right side
    875.00x = 465,499.57
  5. Step 5: Solve for x
    x = 465,499.57/875.00
  6. Step 6: Final answer
    x = 532.00

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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.