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Finding the Fourth Proportional to 183,438.72, 253,052.28 and 119,813.76

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Solution

The fourth proportional to 183,438.72, 253,052.28 and 119,813.76 is: 165,282.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,438.72 : 253,052.28 = 119,813.76 : x
  2. Step 2: Convert to fraction form
    183,438.72/253,052.28 = 119,813.76/x
  3. Step 3: Cross multiply
    183,438.72x = 253,052.28 × 119,813.76
  4. Step 4: Simplify right side
    183,438.72x = 30,319,145,143.37
  5. Step 5: Solve for x
    x = 30,319,145,143.37/183,438.72
  6. Step 6: Final answer
    x = 165,282.15

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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.