Home / 420,217.56-579,908.46-229,238.04

Finding the Fourth Proportional to 420,217.56, 579,908.46 and 229,238.04

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Solution

The fourth proportional to 420,217.56, 579,908.46 and 229,238.04 is: 316,352.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,217.56 : 579,908.46 = 229,238.04 : x
  2. Step 2: Convert to fraction form
    420,217.56/579,908.46 = 229,238.04/x
  3. Step 3: Cross multiply
    420,217.56x = 579,908.46 × 229,238.04
  4. Step 4: Simplify right side
    420,217.56x = 132,937,078,749.82
  5. Step 5: Solve for x
    x = 132,937,078,749.82/420,217.56
  6. Step 6: Final answer
    x = 316,352.98

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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.