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Finding the Fourth Proportional to 289,899.00, 400,079.55 and 167,396.55

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Solution

The fourth proportional to 289,899.00, 400,079.55 and 167,396.55 is: 231,018.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,899.00 : 400,079.55 = 167,396.55 : x
  2. Step 2: Convert to fraction form
    289,899.00/400,079.55 = 167,396.55/x
  3. Step 3: Cross multiply
    289,899.00x = 400,079.55 × 167,396.55
  4. Step 4: Simplify right side
    289,899.00x = 66,971,935,767.82
  5. Step 5: Solve for x
    x = 66,971,935,767.82/289,899.00
  6. Step 6: Final answer
    x = 231,018.16

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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.