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Finding the Fourth Proportional to 848.24, 1,271.28 and 360.64

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Solution

The fourth proportional to 848.24, 1,271.28 and 360.64 is: 540.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.24 : 1,271.28 = 360.64 : x
  2. Step 2: Convert to fraction form
    848.24/1,271.28 = 360.64/x
  3. Step 3: Cross multiply
    848.24x = 1,271.28 × 360.64
  4. Step 4: Simplify right side
    848.24x = 458,474.42
  5. Step 5: Solve for x
    x = 458,474.42/848.24
  6. Step 6: Final answer
    x = 540.50

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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.