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Finding the Fourth Proportional to 630.95, 946.53 and 284.20

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Solution

The fourth proportional to 630.95, 946.53 and 284.20 is: 426.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.95 : 946.53 = 284.20 : x
  2. Step 2: Convert to fraction form
    630.95/946.53 = 284.20/x
  3. Step 3: Cross multiply
    630.95x = 946.53 × 284.20
  4. Step 4: Simplify right side
    630.95x = 269,001.46
  5. Step 5: Solve for x
    x = 269,001.46/630.95
  6. Step 6: Final answer
    x = 426.35

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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.