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Finding the Fourth Proportional to 238,328.42, 328,895.93 and 130,900.96

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Solution

The fourth proportional to 238,328.42, 328,895.93 and 130,900.96 is: 180,644.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,328.42 : 328,895.93 = 130,900.96 : x
  2. Step 2: Convert to fraction form
    238,328.42/328,895.93 = 130,900.96/x
  3. Step 3: Cross multiply
    238,328.42x = 328,895.93 × 130,900.96
  4. Step 4: Simplify right side
    238,328.42x = 43,052,790,678.11
  5. Step 5: Solve for x
    x = 43,052,790,678.11/238,328.42
  6. Step 6: Final answer
    x = 180,644.80

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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.