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Finding the Fourth Proportional to 835.53, 1,152.98 and 462.50

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Solution

The fourth proportional to 835.53, 1,152.98 and 462.50 is: 638.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    835.53 : 1,152.98 = 462.50 : x
  2. Step 2: Convert to fraction form
    835.53/1,152.98 = 462.50/x
  3. Step 3: Cross multiply
    835.53x = 1,152.98 × 462.50
  4. Step 4: Simplify right side
    835.53x = 533,245.17
  5. Step 5: Solve for x
    x = 533,245.17/835.53
  6. Step 6: Final answer
    x = 638.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.