Home / 257,462.95-355,319.93-142,777.56

Finding the Fourth Proportional to 257,462.95, 355,319.93 and 142,777.56

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Solution

The fourth proportional to 257,462.95, 355,319.93 and 142,777.56 is: 197,044.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,462.95 : 355,319.93 = 142,777.56 : x
  2. Step 2: Convert to fraction form
    257,462.95/355,319.93 = 142,777.56/x
  3. Step 3: Cross multiply
    257,462.95x = 355,319.93 × 142,777.56
  4. Step 4: Simplify right side
    257,462.95x = 50,731,713,243.33
  5. Step 5: Solve for x
    x = 50,731,713,243.33/257,462.95
  6. Step 6: Final answer
    x = 197,044.71

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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.