Home / 288,203.09-397,667.83-202,424.17

Finding the Fourth Proportional to 288,203.09, 397,667.83 and 202,424.17

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Solution

The fourth proportional to 288,203.09, 397,667.83 and 202,424.17 is: 279,308.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,203.09 : 397,667.83 = 202,424.17 : x
  2. Step 2: Convert to fraction form
    288,203.09/397,667.83 = 202,424.17/x
  3. Step 3: Cross multiply
    288,203.09x = 397,667.83 × 202,424.17
  4. Step 4: Simplify right side
    288,203.09x = 80,497,580,423.45
  5. Step 5: Solve for x
    x = 80,497,580,423.45/288,203.09
  6. Step 6: Final answer
    x = 279,308.53

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1.5x scale

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.