Home / 257,581.71-355,450.08-142,851.36

Finding the Fourth Proportional to 257,581.71, 355,450.08 and 142,851.36

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Solution

The fourth proportional to 257,581.71, 355,450.08 and 142,851.36 is: 197,127.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,581.71 : 355,450.08 = 142,851.36 : x
  2. Step 2: Convert to fraction form
    257,581.71/355,450.08 = 142,851.36/x
  3. Step 3: Cross multiply
    257,581.71x = 355,450.08 × 142,851.36
  4. Step 4: Simplify right side
    257,581.71x = 50,776,527,340.11
  5. Step 5: Solve for x
    x = 50,776,527,340.11/257,581.71
  6. Step 6: Final answer
    x = 197,127.84

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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.