Home / 257,397.52-355,208.34-144,221.08

Finding the Fourth Proportional to 257,397.52, 355,208.34 and 144,221.08

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Solution

The fourth proportional to 257,397.52, 355,208.34 and 144,221.08 is: 199,024.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,397.52 : 355,208.34 = 144,221.08 : x
  2. Step 2: Convert to fraction form
    257,397.52/355,208.34 = 144,221.08/x
  3. Step 3: Cross multiply
    257,397.52x = 355,208.34 × 144,221.08
  4. Step 4: Simplify right side
    257,397.52x = 51,228,530,419.81
  5. Step 5: Solve for x
    x = 51,228,530,419.81/257,397.52
  6. Step 6: Final answer
    x = 199,024.96

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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.