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Finding the Fourth Proportional to 250,157.92, 345,220.72 and 135,439.06

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Solution

The fourth proportional to 250,157.92, 345,220.72 and 135,439.06 is: 186,907.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,157.92 : 345,220.72 = 135,439.06 : x
  2. Step 2: Convert to fraction form
    250,157.92/345,220.72 = 135,439.06/x
  3. Step 3: Cross multiply
    250,157.92x = 345,220.72 × 135,439.06
  4. Step 4: Simplify right side
    250,157.92x = 46,756,369,809.32
  5. Step 5: Solve for x
    x = 46,756,369,809.32/250,157.92
  6. Step 6: Final answer
    x = 186,907.41

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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.