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Finding the Fourth Proportional to 250,503.32, 345,699.42 and 137,319.32

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Solution

The fourth proportional to 250,503.32, 345,699.42 and 137,319.32 is: 189,503.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,503.32 : 345,699.42 = 137,319.32 : x
  2. Step 2: Convert to fraction form
    250,503.32/345,699.42 = 137,319.32/x
  3. Step 3: Cross multiply
    250,503.32x = 345,699.42 × 137,319.32
  4. Step 4: Simplify right side
    250,503.32x = 47,471,209,278.79
  5. Step 5: Solve for x
    x = 47,471,209,278.79/250,503.32
  6. Step 6: Final answer
    x = 189,503.31

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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.