Home / 288,622.20-398,289.51-202,706.04

Finding the Fourth Proportional to 288,622.20, 398,289.51 and 202,706.04

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Solution

The fourth proportional to 288,622.20, 398,289.51 and 202,706.04 is: 279,727.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,622.20 : 398,289.51 = 202,706.04 : x
  2. Step 2: Convert to fraction form
    288,622.20/398,289.51 = 202,706.04/x
  3. Step 3: Cross multiply
    288,622.20x = 398,289.51 × 202,706.04
  4. Step 4: Simplify right side
    288,622.20x = 80,735,689,345.64
  5. Step 5: Solve for x
    x = 80,735,689,345.64/288,622.20
  6. Step 6: Final answer
    x = 279,727.93

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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.