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Finding the Fourth Proportional to 290,903.72, 436,216.88 and 101,340.77

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Solution

The fourth proportional to 290,903.72, 436,216.88 and 101,340.77 is: 151,962.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,903.72 : 436,216.88 = 101,340.77 : x
  2. Step 2: Convert to fraction form
    290,903.72/436,216.88 = 101,340.77/x
  3. Step 3: Cross multiply
    290,903.72x = 436,216.88 × 101,340.77
  4. Step 4: Simplify right side
    290,903.72x = 44,206,552,578.47
  5. Step 5: Solve for x
    x = 44,206,552,578.47/290,903.72
  6. Step 6: Final answer
    x = 151,962.83

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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.