Home / 258,220.44-387,330.30-89,740.76

Finding the Fourth Proportional to 258,220.44, 387,330.30 and 89,740.76

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Solution

The fourth proportional to 258,220.44, 387,330.30 and 89,740.76 is: 134,611.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,220.44 : 387,330.30 = 89,740.76 : x
  2. Step 2: Convert to fraction form
    258,220.44/387,330.30 = 89,740.76/x
  3. Step 3: Cross multiply
    258,220.44x = 387,330.30 × 89,740.76
  4. Step 4: Simplify right side
    258,220.44x = 34,759,315,493.03
  5. Step 5: Solve for x
    x = 34,759,315,493.03/258,220.44
  6. Step 6: Final answer
    x = 134,611.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.