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Finding the Fourth Proportional to 306,768.42, 423,337.02 and 170,799.42

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Solution

The fourth proportional to 306,768.42, 423,337.02 and 170,799.42 is: 235,701.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,768.42 : 423,337.02 = 170,799.42 : x
  2. Step 2: Convert to fraction form
    306,768.42/423,337.02 = 170,799.42/x
  3. Step 3: Cross multiply
    306,768.42x = 423,337.02 × 170,799.42
  4. Step 4: Simplify right side
    306,768.42x = 72,305,717,480.53
  5. Step 5: Solve for x
    x = 72,305,717,480.53/306,768.42
  6. Step 6: Final answer
    x = 235,701.31

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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.