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Finding the Fourth Proportional to 304,443.45, 420,132.77 and 168,486.77

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Solution

The fourth proportional to 304,443.45, 420,132.77 and 168,486.77 is: 232,512.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,443.45 : 420,132.77 = 168,486.77 : x
  2. Step 2: Convert to fraction form
    304,443.45/420,132.77 = 168,486.77/x
  3. Step 3: Cross multiply
    304,443.45x = 420,132.77 × 168,486.77
  4. Step 4: Simplify right side
    304,443.45x = 70,786,815,175.91
  5. Step 5: Solve for x
    x = 70,786,815,175.91/304,443.45
  6. Step 6: Final answer
    x = 232,512.20

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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.