Home / 290,569.28-401,064.75-188,588.79

Finding the Fourth Proportional to 290,569.28, 401,064.75 and 188,588.79

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Solution

The fourth proportional to 290,569.28, 401,064.75 and 188,588.79 is: 260,303.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,569.28 : 401,064.75 = 188,588.79 : x
  2. Step 2: Convert to fraction form
    290,569.28/401,064.75 = 188,588.79/x
  3. Step 3: Cross multiply
    290,569.28x = 401,064.75 × 188,588.79
  4. Step 4: Simplify right side
    290,569.28x = 75,636,315,914.15
  5. Step 5: Solve for x
    x = 75,636,315,914.15/290,569.28
  6. Step 6: Final answer
    x = 260,303.90

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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.