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Finding the Fourth Proportional to 848.95, 1,272.50 and 355.67

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Solution

The fourth proportional to 848.95, 1,272.50 and 355.67 is: 533.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.95 : 1,272.50 = 355.67 : x
  2. Step 2: Convert to fraction form
    848.95/1,272.50 = 355.67/x
  3. Step 3: Cross multiply
    848.95x = 1,272.50 × 355.67
  4. Step 4: Simplify right side
    848.95x = 452,588.30
  5. Step 5: Solve for x
    x = 452,588.30/848.95
  6. Step 6: Final answer
    x = 533.12

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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.