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Finding the Fourth Proportional to 646.35, 968.61 and 372.51

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Solution

The fourth proportional to 646.35, 968.61 and 372.51 is: 558.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    646.35 : 968.61 = 372.51 : x
  2. Step 2: Convert to fraction form
    646.35/968.61 = 372.51/x
  3. Step 3: Cross multiply
    646.35x = 968.61 × 372.51
  4. Step 4: Simplify right side
    646.35x = 360,816.91
  5. Step 5: Solve for x
    x = 360,816.91/646.35
  6. Step 6: Final answer
    x = 558.24

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1.5x scale

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.