Home / 280,237.39-386,780.34-175,509.87

Finding the Fourth Proportional to 280,237.39, 386,780.34 and 175,509.87

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Solution

The fourth proportional to 280,237.39, 386,780.34 and 175,509.87 is: 242,236.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,237.39 : 386,780.34 = 175,509.87 : x
  2. Step 2: Convert to fraction form
    280,237.39/386,780.34 = 175,509.87/x
  3. Step 3: Cross multiply
    280,237.39x = 386,780.34 × 175,509.87
  4. Step 4: Simplify right side
    280,237.39x = 67,883,765,258.05
  5. Step 5: Solve for x
    x = 67,883,765,258.05/280,237.39
  6. Step 6: Final answer
    x = 242,236.65

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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.