Home / 280,594.06-420,953.29-80,898.86

Finding the Fourth Proportional to 280,594.06, 420,953.29 and 80,898.86

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Solution

The fourth proportional to 280,594.06, 420,953.29 and 80,898.86 is: 121,366.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,594.06 : 420,953.29 = 80,898.86 : x
  2. Step 2: Convert to fraction form
    280,594.06/420,953.29 = 80,898.86/x
  3. Step 3: Cross multiply
    280,594.06x = 420,953.29 × 80,898.86
  4. Step 4: Simplify right side
    280,594.06x = 34,054,640,545.81
  5. Step 5: Solve for x
    x = 34,054,640,545.81/280,594.06
  6. Step 6: Final answer
    x = 121,366.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.