Home / 258,261.37-386,887.59-145,600.83

Finding the Fourth Proportional to 258,261.37, 386,887.59 and 145,600.83

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Solution

The fourth proportional to 258,261.37, 386,887.59 and 145,600.83 is: 218,116.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,261.37 : 386,887.59 = 145,600.83 : x
  2. Step 2: Convert to fraction form
    258,261.37/386,887.59 = 145,600.83/x
  3. Step 3: Cross multiply
    258,261.37x = 386,887.59 × 145,600.83
  4. Step 4: Simplify right side
    258,261.37x = 56,331,154,220.70
  5. Step 5: Solve for x
    x = 56,331,154,220.70/258,261.37
  6. Step 6: Final answer
    x = 218,116.84

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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.