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Finding the Fourth Proportional to 303,074.54, 417,808.30 and 238,431.51

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Solution

The fourth proportional to 303,074.54, 417,808.30 and 238,431.51 is: 328,693.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,074.54 : 417,808.30 = 238,431.51 : x
  2. Step 2: Convert to fraction form
    303,074.54/417,808.30 = 238,431.51/x
  3. Step 3: Cross multiply
    303,074.54x = 417,808.30 × 238,431.51
  4. Step 4: Simplify right side
    303,074.54x = 99,618,663,859.53
  5. Step 5: Solve for x
    x = 99,618,663,859.53/303,074.54
  6. Step 6: Final answer
    x = 328,693.61

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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.