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Finding the Fourth Proportional to 968.25, 1,336.19 and 526.16

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Solution

The fourth proportional to 968.25, 1,336.19 and 526.16 is: 726.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    968.25 : 1,336.19 = 526.16 : x
  2. Step 2: Convert to fraction form
    968.25/1,336.19 = 526.16/x
  3. Step 3: Cross multiply
    968.25x = 1,336.19 × 526.16
  4. Step 4: Simplify right side
    968.25x = 703,049.73
  5. Step 5: Solve for x
    x = 703,049.73/968.25
  6. Step 6: Final answer
    x = 726.10

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Double scale
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1.5x scale

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.