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Finding the Fourth Proportional to 250,402.96, 345,564.93 and 137,225.71

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Solution

The fourth proportional to 250,402.96, 345,564.93 and 137,225.71 is: 189,376.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,402.96 : 345,564.93 = 137,225.71 : x
  2. Step 2: Convert to fraction form
    250,402.96/345,564.93 = 137,225.71/x
  3. Step 3: Cross multiply
    250,402.96x = 345,564.93 × 137,225.71
  4. Step 4: Simplify right side
    250,402.96x = 47,420,392,870.35
  5. Step 5: Solve for x
    x = 47,420,392,870.35/250,402.96
  6. Step 6: Final answer
    x = 189,376.33

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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.