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Finding the Fourth Proportional to 304,410.80, 420,079.56 and 168,441.68

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Solution

The fourth proportional to 304,410.80, 420,079.56 and 168,441.68 is: 232,445.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,410.80 : 420,079.56 = 168,441.68 : x
  2. Step 2: Convert to fraction form
    304,410.80/420,079.56 = 168,441.68/x
  3. Step 3: Cross multiply
    304,410.80x = 420,079.56 × 168,441.68
  4. Step 4: Simplify right side
    304,410.80x = 70,758,906,820.06
  5. Step 5: Solve for x
    x = 70,758,906,820.06/304,410.80
  6. Step 6: Final answer
    x = 232,445.45

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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.