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Finding the Fourth Proportional to 296,598.12, 444,940.56 and 86,208.72

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Solution

The fourth proportional to 296,598.12, 444,940.56 and 86,208.72 is: 129,325.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,598.12 : 444,940.56 = 86,208.72 : x
  2. Step 2: Convert to fraction form
    296,598.12/444,940.56 = 86,208.72/x
  3. Step 3: Cross multiply
    296,598.12x = 444,940.56 × 86,208.72
  4. Step 4: Simplify right side
    296,598.12x = 38,357,756,153.68
  5. Step 5: Solve for x
    x = 38,357,756,153.68/296,598.12
  6. Step 6: Final answer
    x = 129,325.69

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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.