Home / 304,407.24-420,199.68-272,520.72

Finding the Fourth Proportional to 304,407.24, 420,199.68 and 272,520.72

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Solution

The fourth proportional to 304,407.24, 420,199.68 and 272,520.72 is: 376,183.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,407.24 : 420,199.68 = 272,520.72 : x
  2. Step 2: Convert to fraction form
    304,407.24/420,199.68 = 272,520.72/x
  3. Step 3: Cross multiply
    304,407.24x = 420,199.68 × 272,520.72
  4. Step 4: Simplify right side
    304,407.24x = 114,513,119,337.37
  5. Step 5: Solve for x
    x = 114,513,119,337.37/304,407.24
  6. Step 6: Final answer
    x = 376,183.95

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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.