Home / 287,831.60-397,208.01-158,767.19

Finding the Fourth Proportional to 287,831.60, 397,208.01 and 158,767.19

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Solution

The fourth proportional to 287,831.60, 397,208.01 and 158,767.19 is: 219,098.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,831.60 : 397,208.01 = 158,767.19 : x
  2. Step 2: Convert to fraction form
    287,831.60/397,208.01 = 158,767.19/x
  3. Step 3: Cross multiply
    287,831.60x = 397,208.01 × 158,767.19
  4. Step 4: Simplify right side
    287,831.60x = 63,063,599,593.19
  5. Step 5: Solve for x
    x = 63,063,599,593.19/287,831.60
  6. Step 6: Final answer
    x = 219,098.94

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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.