Home / 257,433.78-355,259.04-144,256.52

Finding the Fourth Proportional to 257,433.78, 355,259.04 and 144,256.52

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Solution

The fourth proportional to 257,433.78, 355,259.04 and 144,256.52 is: 199,074.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,433.78 : 355,259.04 = 144,256.52 : x
  2. Step 2: Convert to fraction form
    257,433.78/355,259.04 = 144,256.52/x
  3. Step 3: Cross multiply
    257,433.78x = 355,259.04 × 144,256.52
  4. Step 4: Simplify right side
    257,433.78x = 51,248,432,808.94
  5. Step 5: Solve for x
    x = 51,248,432,808.94/257,433.78
  6. Step 6: Final answer
    x = 199,074.23

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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.