Home / 257,336.25-355,038.96-155,322.95

Finding the Fourth Proportional to 257,336.25, 355,038.96 and 155,322.95

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Solution

The fourth proportional to 257,336.25, 355,038.96 and 155,322.95 is: 214,294.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,336.25 : 355,038.96 = 155,322.95 : x
  2. Step 2: Convert to fraction form
    257,336.25/355,038.96 = 155,322.95/x
  3. Step 3: Cross multiply
    257,336.25x = 355,038.96 × 155,322.95
  4. Step 4: Simplify right side
    257,336.25x = 55,145,697,855.52
  5. Step 5: Solve for x
    x = 55,145,697,855.52/257,336.25
  6. Step 6: Final answer
    x = 214,294.33

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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.