Home / 290,617.00-401,038.90-161,555.18

Finding the Fourth Proportional to 290,617.00, 401,038.90 and 161,555.18

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Solution

The fourth proportional to 290,617.00, 401,038.90 and 161,555.18 is: 222,939.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,617.00 : 401,038.90 = 161,555.18 : x
  2. Step 2: Convert to fraction form
    290,617.00/401,038.90 = 161,555.18/x
  3. Step 3: Cross multiply
    290,617.00x = 401,038.90 × 161,555.18
  4. Step 4: Simplify right side
    290,617.00x = 64,789,909,267.42
  5. Step 5: Solve for x
    x = 64,789,909,267.42/290,617.00
  6. Step 6: Final answer
    x = 222,939.16

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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.