Home / 290,924.38-436,382.18-130,887.30

Finding the Fourth Proportional to 290,924.38, 436,382.18 and 130,887.30

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Solution

The fourth proportional to 290,924.38, 436,382.18 and 130,887.30 is: 196,328.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,924.38 : 436,382.18 = 130,887.30 : x
  2. Step 2: Convert to fraction form
    290,924.38/436,382.18 = 130,887.30/x
  3. Step 3: Cross multiply
    290,924.38x = 436,382.18 × 130,887.30
  4. Step 4: Simplify right side
    290,924.38x = 57,116,885,308.31
  5. Step 5: Solve for x
    x = 57,116,885,308.31/290,924.38
  6. Step 6: Final answer
    x = 196,328.97

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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.