Home / 288,365.50-397,936.63-159,301.17

Finding the Fourth Proportional to 288,365.50, 397,936.63 and 159,301.17

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Solution

The fourth proportional to 288,365.50, 397,936.63 and 159,301.17 is: 219,831.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,365.50 : 397,936.63 = 159,301.17 : x
  2. Step 2: Convert to fraction form
    288,365.50/397,936.63 = 159,301.17/x
  3. Step 3: Cross multiply
    288,365.50x = 397,936.63 × 159,301.17
  4. Step 4: Simplify right side
    288,365.50x = 63,391,769,948.35
  5. Step 5: Solve for x
    x = 63,391,769,948.35/288,365.50
  6. Step 6: Final answer
    x = 219,831.33

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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.