Home / 258,976.20-357,385.86-145,799.76

Finding the Fourth Proportional to 258,976.20, 357,385.86 and 145,799.76

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Solution

The fourth proportional to 258,976.20, 357,385.86 and 145,799.76 is: 201,202.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,976.20 : 357,385.86 = 145,799.76 : x
  2. Step 2: Convert to fraction form
    258,976.20/357,385.86 = 145,799.76/x
  3. Step 3: Cross multiply
    258,976.20x = 357,385.86 × 145,799.76
  4. Step 4: Simplify right side
    258,976.20x = 52,106,772,615.39
  5. Step 5: Solve for x
    x = 52,106,772,615.39/258,976.20
  6. Step 6: Final answer
    x = 201,202.94

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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.