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Finding the Fourth Proportional to 250,117.74, 345,162.24 and 136,940.40

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Solution

The fourth proportional to 250,117.74, 345,162.24 and 136,940.40 is: 188,977.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,117.74 : 345,162.24 = 136,940.40 : x
  2. Step 2: Convert to fraction form
    250,117.74/345,162.24 = 136,940.40/x
  3. Step 3: Cross multiply
    250,117.74x = 345,162.24 × 136,940.40
  4. Step 4: Simplify right side
    250,117.74x = 47,266,655,210.50
  5. Step 5: Solve for x
    x = 47,266,655,210.50/250,117.74
  6. Step 6: Final answer
    x = 188,977.62

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1.5x scale

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.