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Finding the Fourth Proportional to 303,531.07, 418,870.53 and 167,565.21

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Solution

The fourth proportional to 303,531.07, 418,870.53 and 167,565.21 is: 231,238.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,531.07 : 418,870.53 = 167,565.21 : x
  2. Step 2: Convert to fraction form
    303,531.07/418,870.53 = 167,565.21/x
  3. Step 3: Cross multiply
    303,531.07x = 418,870.53 × 167,565.21
  4. Step 4: Simplify right side
    303,531.07x = 70,188,128,322.26
  5. Step 5: Solve for x
    x = 70,188,128,322.26/303,531.07
  6. Step 6: Final answer
    x = 231,238.69

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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.