Home / 257,535.66-355,389.33-142,819.02

Finding the Fourth Proportional to 257,535.66, 355,389.33 and 142,819.02

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Solution

The fourth proportional to 257,535.66, 355,389.33 and 142,819.02 is: 197,084.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,535.66 : 355,389.33 = 142,819.02 : x
  2. Step 2: Convert to fraction form
    257,535.66/355,389.33 = 142,819.02/x
  3. Step 3: Cross multiply
    257,535.66x = 355,389.33 × 142,819.02
  4. Step 4: Simplify right side
    257,535.66x = 50,756,355,829.06
  5. Step 5: Solve for x
    x = 50,756,355,829.06/257,535.66
  6. Step 6: Final answer
    x = 197,084.77

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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.