Home / 290,368.24-400,694.55-161,315.04

Finding the Fourth Proportional to 290,368.24, 400,694.55 and 161,315.04

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Solution

The fourth proportional to 290,368.24, 400,694.55 and 161,315.04 is: 222,607.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,368.24 : 400,694.55 = 161,315.04 : x
  2. Step 2: Convert to fraction form
    290,368.24/400,694.55 = 161,315.04/x
  3. Step 3: Cross multiply
    290,368.24x = 400,694.55 × 161,315.04
  4. Step 4: Simplify right side
    290,368.24x = 64,638,058,258.71
  5. Step 5: Solve for x
    x = 64,638,058,258.71/290,368.24
  6. Step 6: Final answer
    x = 222,607.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.