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Finding the Fourth Proportional to 835.18, 1,152.38 and 524.50

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Solution

The fourth proportional to 835.18, 1,152.38 and 524.50 is: 723.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    835.18 : 1,152.38 = 524.50 : x
  2. Step 2: Convert to fraction form
    835.18/1,152.38 = 524.50/x
  3. Step 3: Cross multiply
    835.18x = 1,152.38 × 524.50
  4. Step 4: Simplify right side
    835.18x = 604,423.31
  5. Step 5: Solve for x
    x = 604,423.31/835.18
  6. Step 6: Final answer
    x = 723.70

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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.