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Finding the Fourth Proportional to 616.58, 924.56 and 270.20

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Solution

The fourth proportional to 616.58, 924.56 and 270.20 is: 405.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    616.58 : 924.56 = 270.20 : x
  2. Step 2: Convert to fraction form
    616.58/924.56 = 270.20/x
  3. Step 3: Cross multiply
    616.58x = 924.56 × 270.20
  4. Step 4: Simplify right side
    616.58x = 249,816.11
  5. Step 5: Solve for x
    x = 249,816.11/616.58
  6. Step 6: Final answer
    x = 405.16

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Double scale
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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.