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Finding the Fourth Proportional to 303,623.40, 455,726.70 and 154,032.60

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Solution

The fourth proportional to 303,623.40, 455,726.70 and 154,032.60 is: 231,196.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,623.40 : 455,726.70 = 154,032.60 : x
  2. Step 2: Convert to fraction form
    303,623.40/455,726.70 = 154,032.60/x
  3. Step 3: Cross multiply
    303,623.40x = 455,726.70 × 154,032.60
  4. Step 4: Simplify right side
    303,623.40x = 70,196,768,490.42
  5. Step 5: Solve for x
    x = 70,196,768,490.42/303,623.40
  6. Step 6: Final answer
    x = 231,196.83

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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.