Home / 290,845.13-436,032.36-130,803.86

Finding the Fourth Proportional to 290,845.13, 436,032.36 and 130,803.86

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Solution

The fourth proportional to 290,845.13, 436,032.36 and 130,803.86 is: 196,099.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,845.13 : 436,032.36 = 130,803.86 : x
  2. Step 2: Convert to fraction form
    290,845.13/436,032.36 = 130,803.86/x
  3. Step 3: Cross multiply
    290,845.13x = 436,032.36 × 130,803.86
  4. Step 4: Simplify right side
    290,845.13x = 57,034,712,938.73
  5. Step 5: Solve for x
    x = 57,034,712,938.73/290,845.13
  6. Step 6: Final answer
    x = 196,099.94

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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.