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Finding the Fourth Proportional to 303,609.79, 455,692.52 and 153,953.38

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Solution

The fourth proportional to 303,609.79, 455,692.52 and 153,953.38 is: 231,070.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,609.79 : 455,692.52 = 153,953.38 : x
  2. Step 2: Convert to fraction form
    303,609.79/455,692.52 = 153,953.38/x
  3. Step 3: Cross multiply
    303,609.79x = 455,692.52 × 153,953.38
  4. Step 4: Simplify right side
    303,609.79x = 70,155,403,694.72
  5. Step 5: Solve for x
    x = 70,155,403,694.72/303,609.79
  6. Step 6: Final answer
    x = 231,070.95

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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.