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Finding the Fourth Proportional to 250,500.63, 345,712.74 and 137,345.25

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Solution

The fourth proportional to 250,500.63, 345,712.74 and 137,345.25 is: 189,548.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,500.63 : 345,712.74 = 137,345.25 : x
  2. Step 2: Convert to fraction form
    250,500.63/345,712.74 = 137,345.25/x
  3. Step 3: Cross multiply
    250,500.63x = 345,712.74 × 137,345.25
  4. Step 4: Simplify right side
    250,500.63x = 47,482,002,703.49
  5. Step 5: Solve for x
    x = 47,482,002,703.49/250,500.63
  6. Step 6: Final answer
    x = 189,548.44

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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.