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Finding the Fourth Proportional to 217,168.30, 299,709.24 and 139,713.10

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Solution

The fourth proportional to 217,168.30, 299,709.24 and 139,713.10 is: 192,815.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,168.30 : 299,709.24 = 139,713.10 : x
  2. Step 2: Convert to fraction form
    217,168.30/299,709.24 = 139,713.10/x
  3. Step 3: Cross multiply
    217,168.30x = 299,709.24 × 139,713.10
  4. Step 4: Simplify right side
    217,168.30x = 41,873,307,019.04
  5. Step 5: Solve for x
    x = 41,873,307,019.04/217,168.30
  6. Step 6: Final answer
    x = 192,815.01

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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.