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Finding the Fourth Proportional to 245,024.94, 338,123.94 and 143,056.05

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Solution

The fourth proportional to 245,024.94, 338,123.94 and 143,056.05 is: 197,411.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,024.94 : 338,123.94 = 143,056.05 : x
  2. Step 2: Convert to fraction form
    245,024.94/338,123.94 = 143,056.05/x
  3. Step 3: Cross multiply
    245,024.94x = 338,123.94 × 143,056.05
  4. Step 4: Simplify right side
    245,024.94x = 48,370,675,266.84
  5. Step 5: Solve for x
    x = 48,370,675,266.84/245,024.94
  6. Step 6: Final answer
    x = 197,411.23

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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.