Home / 257,559.52-355,449.20-144,389.60

Finding the Fourth Proportional to 257,559.52, 355,449.20 and 144,389.60

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Solution

The fourth proportional to 257,559.52, 355,449.20 and 144,389.60 is: 199,267.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,559.52 : 355,449.20 = 144,389.60 : x
  2. Step 2: Convert to fraction form
    257,559.52/355,449.20 = 144,389.60/x
  3. Step 3: Cross multiply
    257,559.52x = 355,449.20 × 144,389.60
  4. Step 4: Simplify right side
    257,559.52x = 51,323,167,808.32
  5. Step 5: Solve for x
    x = 51,323,167,808.32/257,559.52
  6. Step 6: Final answer
    x = 199,267.21

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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.