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Finding the Fourth Proportional to 171,204.44, 256,440.90 and 139,038.54

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Solution

The fourth proportional to 171,204.44, 256,440.90 and 139,038.54 is: 208,260.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,204.44 : 256,440.90 = 139,038.54 : x
  2. Step 2: Convert to fraction form
    171,204.44/256,440.90 = 139,038.54/x
  3. Step 3: Cross multiply
    171,204.44x = 256,440.90 × 139,038.54
  4. Step 4: Simplify right side
    171,204.44x = 35,655,168,332.29
  5. Step 5: Solve for x
    x = 35,655,168,332.29/171,204.44
  6. Step 6: Final answer
    x = 208,260.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.