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Finding the Fourth Proportional to 171,390.84, 256,751.46 and 118,073.40

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Solution

The fourth proportional to 171,390.84, 256,751.46 and 118,073.40 is: 176,879.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,390.84 : 256,751.46 = 118,073.40 : x
  2. Step 2: Convert to fraction form
    171,390.84/256,751.46 = 118,073.40/x
  3. Step 3: Cross multiply
    171,390.84x = 256,751.46 × 118,073.40
  4. Step 4: Simplify right side
    171,390.84x = 30,315,517,837.16
  5. Step 5: Solve for x
    x = 30,315,517,837.16/171,390.84
  6. Step 6: Final answer
    x = 176,879.45

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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.