Home / 280,567.92-387,178.32-153,244.56

Finding the Fourth Proportional to 280,567.92, 387,178.32 and 153,244.56

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Solution

The fourth proportional to 280,567.92, 387,178.32 and 153,244.56 is: 211,474.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,567.92 : 387,178.32 = 153,244.56 : x
  2. Step 2: Convert to fraction form
    280,567.92/387,178.32 = 153,244.56/x
  3. Step 3: Cross multiply
    280,567.92x = 387,178.32 × 153,244.56
  4. Step 4: Simplify right side
    280,567.92x = 59,332,971,289.94
  5. Step 5: Solve for x
    x = 59,332,971,289.94/280,567.92
  6. Step 6: Final answer
    x = 211,474.54

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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.