Home / 257,436.78-355,263.18-144,259.52

Finding the Fourth Proportional to 257,436.78, 355,263.18 and 144,259.52

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Solution

The fourth proportional to 257,436.78, 355,263.18 and 144,259.52 is: 199,078.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,436.78 : 355,263.18 = 144,259.52 : x
  2. Step 2: Convert to fraction form
    257,436.78/355,263.18 = 144,259.52/x
  3. Step 3: Cross multiply
    257,436.78x = 355,263.18 × 144,259.52
  4. Step 4: Simplify right side
    257,436.78x = 51,250,095,820.47
  5. Step 5: Solve for x
    x = 51,250,095,820.47/257,436.78
  6. Step 6: Final answer
    x = 199,078.37

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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.