Home / 420,163.32-579,838.86-229,184.76

Finding the Fourth Proportional to 420,163.32, 579,838.86 and 229,184.76

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Solution

The fourth proportional to 420,163.32, 579,838.86 and 229,184.76 is: 316,282.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,163.32 : 579,838.86 = 229,184.76 : x
  2. Step 2: Convert to fraction form
    420,163.32/579,838.86 = 229,184.76/x
  3. Step 3: Cross multiply
    420,163.32x = 579,838.86 × 229,184.76
  4. Step 4: Simplify right side
    420,163.32x = 132,890,229,967.77
  5. Step 5: Solve for x
    x = 132,890,229,967.77/420,163.32
  6. Step 6: Final answer
    x = 316,282.32

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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.