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Finding the Fourth Proportional to 673.50, 929.96 and 526.55

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Solution

The fourth proportional to 673.50, 929.96 and 526.55 is: 727.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.50 : 929.96 = 526.55 : x
  2. Step 2: Convert to fraction form
    673.50/929.96 = 526.55/x
  3. Step 3: Cross multiply
    673.50x = 929.96 × 526.55
  4. Step 4: Simplify right side
    673.50x = 489,663.16
  5. Step 5: Solve for x
    x = 489,663.16/673.50
  6. Step 6: Final answer
    x = 727.04

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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.