Home / 257,581.08-355,456.60-142,841.22

Finding the Fourth Proportional to 257,581.08, 355,456.60 and 142,841.22

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Solution

The fourth proportional to 257,581.08, 355,456.60 and 142,841.22 is: 197,117.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,581.08 : 355,456.60 = 142,841.22 : x
  2. Step 2: Convert to fraction form
    257,581.08/355,456.60 = 142,841.22/x
  3. Step 3: Cross multiply
    257,581.08x = 355,456.60 × 142,841.22
  4. Step 4: Simplify right side
    257,581.08x = 50,773,852,710.99
  5. Step 5: Solve for x
    x = 50,773,852,710.99/257,581.08
  6. Step 6: Final answer
    x = 197,117.94

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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.