Home / 280,258.93-386,765.55-152,942.74

Finding the Fourth Proportional to 280,258.93, 386,765.55 and 152,942.74

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Solution

The fourth proportional to 280,258.93, 386,765.55 and 152,942.74 is: 211,065.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,258.93 : 386,765.55 = 152,942.74 : x
  2. Step 2: Convert to fraction form
    280,258.93/386,765.55 = 152,942.74/x
  3. Step 3: Cross multiply
    280,258.93x = 386,765.55 × 152,942.74
  4. Step 4: Simplify right side
    280,258.93x = 59,152,982,954.61
  5. Step 5: Solve for x
    x = 59,152,982,954.61/280,258.93
  6. Step 6: Final answer
    x = 211,065.47

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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.