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Finding the Fourth Proportional to 169,389.16, 253,639.86 and 119,197.51

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Solution

The fourth proportional to 169,389.16, 253,639.86 and 119,197.51 is: 178,483.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,389.16 : 253,639.86 = 119,197.51 : x
  2. Step 2: Convert to fraction form
    169,389.16/253,639.86 = 119,197.51/x
  3. Step 3: Cross multiply
    169,389.16x = 253,639.86 × 119,197.51
  4. Step 4: Simplify right side
    169,389.16x = 30,233,238,667.66
  5. Step 5: Solve for x
    x = 30,233,238,667.66/169,389.16
  6. Step 6: Final answer
    x = 178,483.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.