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Finding the Fourth Proportional to 303,466.72, 418,734 and 169,330.40

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Solution

The fourth proportional to 303,466.72, 418,734 and 169,330.40 is: 233,648.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,466.72 : 418,734 = 169,330.40 : x
  2. Step 2: Convert to fraction form
    303,466.72/418,734 = 169,330.40/x
  3. Step 3: Cross multiply
    303,466.72x = 418,734 × 169,330.40
  4. Step 4: Simplify right side
    303,466.72x = 70,904,395,713.60
  5. Step 5: Solve for x
    x = 70,904,395,713.60/303,466.72
  6. Step 6: Final answer
    x = 233,648.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.