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Finding the Fourth Proportional to 848.26, 1,272.53 and 300.30

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Solution

The fourth proportional to 848.26, 1,272.53 and 300.30 is: 450.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.26 : 1,272.53 = 300.30 : x
  2. Step 2: Convert to fraction form
    848.26/1,272.53 = 300.30/x
  3. Step 3: Cross multiply
    848.26x = 1,272.53 × 300.30
  4. Step 4: Simplify right side
    848.26x = 382,140.76
  5. Step 5: Solve for x
    x = 382,140.76/848.26
  6. Step 6: Final answer
    x = 450.50

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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.