Home / 257,492.70-355,344.20-142,776.18

Finding the Fourth Proportional to 257,492.70, 355,344.20 and 142,776.18

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Solution

The fourth proportional to 257,492.70, 355,344.20 and 142,776.18 is: 197,033.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,492.70 : 355,344.20 = 142,776.18 : x
  2. Step 2: Convert to fraction form
    257,492.70/355,344.20 = 142,776.18/x
  3. Step 3: Cross multiply
    257,492.70x = 355,344.20 × 142,776.18
  4. Step 4: Simplify right side
    257,492.70x = 50,734,686,747.28
  5. Step 5: Solve for x
    x = 50,734,686,747.28/257,492.70
  6. Step 6: Final answer
    x = 197,033.50

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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.