Home / 257,527.07-355,380.79-142,803.88

Finding the Fourth Proportional to 257,527.07, 355,380.79 and 142,803.88

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Solution

The fourth proportional to 257,527.07, 355,380.79 and 142,803.88 is: 197,065.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,527.07 : 355,380.79 = 142,803.88 : x
  2. Step 2: Convert to fraction form
    257,527.07/355,380.79 = 142,803.88/x
  3. Step 3: Cross multiply
    257,527.07x = 355,380.79 × 142,803.88
  4. Step 4: Simplify right side
    257,527.07x = 50,749,754,444.00
  5. Step 5: Solve for x
    x = 50,749,754,444.00/257,527.07
  6. Step 6: Final answer
    x = 197,065.71

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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.