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Finding the Fourth Proportional to 290,408.76, 435,663.90 and 132,653.16

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Solution

The fourth proportional to 290,408.76, 435,663.90 and 132,653.16 is: 199,002.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,408.76 : 435,663.90 = 132,653.16 : x
  2. Step 2: Convert to fraction form
    290,408.76/435,663.90 = 132,653.16/x
  3. Step 3: Cross multiply
    290,408.76x = 435,663.90 × 132,653.16
  4. Step 4: Simplify right side
    290,408.76x = 57,792,193,032.92
  5. Step 5: Solve for x
    x = 57,792,193,032.92/290,408.76
  6. Step 6: Final answer
    x = 199,002.93

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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.