Home / 280,027.14-386,439.21-152,704.86

Finding the Fourth Proportional to 280,027.14, 386,439.21 and 152,704.86

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Solution

The fourth proportional to 280,027.14, 386,439.21 and 152,704.86 is: 210,733.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,027.14 : 386,439.21 = 152,704.86 : x
  2. Step 2: Convert to fraction form
    280,027.14/386,439.21 = 152,704.86/x
  3. Step 3: Cross multiply
    280,027.14x = 386,439.21 × 152,704.86
  4. Step 4: Simplify right side
    280,027.14x = 59,011,145,461.56
  5. Step 5: Solve for x
    x = 59,011,145,461.56/280,027.14
  6. Step 6: Final answer
    x = 210,733.66

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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.