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Finding the Fourth Proportional to 242,323.41, 334,398.47 and 134,889.87

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Solution

The fourth proportional to 242,323.41, 334,398.47 and 134,889.87 is: 186,143.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,323.41 : 334,398.47 = 134,889.87 : x
  2. Step 2: Convert to fraction form
    242,323.41/334,398.47 = 134,889.87/x
  3. Step 3: Cross multiply
    242,323.41x = 334,398.47 × 134,889.87
  4. Step 4: Simplify right side
    242,323.41x = 45,106,965,472.05
  5. Step 5: Solve for x
    x = 45,106,965,472.05/242,323.41
  6. Step 6: Final answer
    x = 186,143.66

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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.