Home / 280,562.85-387,176.73-153,238.74

Finding the Fourth Proportional to 280,562.85, 387,176.73 and 153,238.74

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Solution

The fourth proportional to 280,562.85, 387,176.73 and 153,238.74 is: 211,469.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,562.85 : 387,176.73 = 153,238.74 : x
  2. Step 2: Convert to fraction form
    280,562.85/387,176.73 = 153,238.74/x
  3. Step 3: Cross multiply
    280,562.85x = 387,176.73 × 153,238.74
  4. Step 4: Simplify right side
    280,562.85x = 59,330,474,262.52
  5. Step 5: Solve for x
    x = 59,330,474,262.52/280,562.85
  6. Step 6: Final answer
    x = 211,469.46

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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.