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Finding the Fourth Proportional to 848.95, 1,273.61 and 328.95

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Solution

The fourth proportional to 848.95, 1,273.61 and 328.95 is: 493.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.95 : 1,273.61 = 328.95 : x
  2. Step 2: Convert to fraction form
    848.95/1,273.61 = 328.95/x
  3. Step 3: Cross multiply
    848.95x = 1,273.61 × 328.95
  4. Step 4: Simplify right side
    848.95x = 418,954.01
  5. Step 5: Solve for x
    x = 418,954.01/848.95
  6. Step 6: Final answer
    x = 493.50

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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.