Home / 280,725.14-387,410.24-153,408.93

Finding the Fourth Proportional to 280,725.14, 387,410.24 and 153,408.93

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Solution

The fourth proportional to 280,725.14, 387,410.24 and 153,408.93 is: 211,709.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,725.14 : 387,410.24 = 153,408.93 : x
  2. Step 2: Convert to fraction form
    280,725.14/387,410.24 = 153,408.93/x
  3. Step 3: Cross multiply
    280,725.14x = 387,410.24 × 153,408.93
  4. Step 4: Simplify right side
    280,725.14x = 59,432,189,622.40
  5. Step 5: Solve for x
    x = 59,432,189,622.40/280,725.14
  6. Step 6: Final answer
    x = 211,709.54

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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.