Home / 257,947.50-355,967.55-144,770.25

Finding the Fourth Proportional to 257,947.50, 355,967.55 and 144,770.25

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Solution

The fourth proportional to 257,947.50, 355,967.55 and 144,770.25 is: 199,782.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,947.50 : 355,967.55 = 144,770.25 : x
  2. Step 2: Convert to fraction form
    257,947.50/355,967.55 = 144,770.25/x
  3. Step 3: Cross multiply
    257,947.50x = 355,967.55 × 144,770.25
  4. Step 4: Simplify right side
    257,947.50x = 51,533,511,205.39
  5. Step 5: Solve for x
    x = 51,533,511,205.39/257,947.50
  6. Step 6: Final answer
    x = 199,782.95

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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.