Home / 258,917.76-357,255.36-163,555.20

Finding the Fourth Proportional to 258,917.76, 357,255.36 and 163,555.20

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Solution

The fourth proportional to 258,917.76, 357,255.36 and 163,555.20 is: 225,673.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,917.76 : 357,255.36 = 163,555.20 : x
  2. Step 2: Convert to fraction form
    258,917.76/357,255.36 = 163,555.20/x
  3. Step 3: Cross multiply
    258,917.76x = 357,255.36 × 163,555.20
  4. Step 4: Simplify right side
    258,917.76x = 58,430,971,855.87
  5. Step 5: Solve for x
    x = 58,430,971,855.87/258,917.76
  6. Step 6: Final answer
    x = 225,673.87

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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.