Home / 257,255.01-355,024.59-155,278.85

Finding the Fourth Proportional to 257,255.01, 355,024.59 and 155,278.85

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Solution

The fourth proportional to 257,255.01, 355,024.59 and 155,278.85 is: 214,292.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,255.01 : 355,024.59 = 155,278.85 : x
  2. Step 2: Convert to fraction form
    257,255.01/355,024.59 = 155,278.85/x
  3. Step 3: Cross multiply
    257,255.01x = 355,024.59 × 155,278.85
  4. Step 4: Simplify right side
    257,255.01x = 55,127,808,281.80
  5. Step 5: Solve for x
    x = 55,127,808,281.80/257,255.01
  6. Step 6: Final answer
    x = 214,292.46

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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.