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Finding the Fourth Proportional to 250,983, 346,358.97 and 137,808.18

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Solution

The fourth proportional to 250,983, 346,358.97 and 137,808.18 is: 190,176.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,983 : 346,358.97 = 137,808.18 : x
  2. Step 2: Convert to fraction form
    250,983/346,358.97 = 137,808.18/x
  3. Step 3: Cross multiply
    250,983x = 346,358.97 × 137,808.18
  4. Step 4: Simplify right side
    250,983x = 47,731,099,282.37
  5. Step 5: Solve for x
    x = 47,731,099,282.37/250,983
  6. Step 6: Final answer
    x = 190,176.62

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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.