Home / 258,749.18-388,101.54-157,520.96

Finding the Fourth Proportional to 258,749.18, 388,101.54 and 157,520.96

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Solution

The fourth proportional to 258,749.18, 388,101.54 and 157,520.96 is: 236,267.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,749.18 : 388,101.54 = 157,520.96 : x
  2. Step 2: Convert to fraction form
    258,749.18/388,101.54 = 157,520.96/x
  3. Step 3: Cross multiply
    258,749.18x = 388,101.54 × 157,520.96
  4. Step 4: Simplify right side
    258,749.18x = 61,134,127,158.28
  5. Step 5: Solve for x
    x = 61,134,127,158.28/258,749.18
  6. Step 6: Final answer
    x = 236,267.91

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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.