Home / 287,717.50-397,088.63-165,258.06

Finding the Fourth Proportional to 287,717.50, 397,088.63 and 165,258.06

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Solution

The fourth proportional to 287,717.50, 397,088.63 and 165,258.06 is: 228,078.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,717.50 : 397,088.63 = 165,258.06 : x
  2. Step 2: Convert to fraction form
    287,717.50/397,088.63 = 165,258.06/x
  3. Step 3: Cross multiply
    287,717.50x = 397,088.63 × 165,258.06
  4. Step 4: Simplify right side
    287,717.50x = 65,622,096,641.86
  5. Step 5: Solve for x
    x = 65,622,096,641.86/287,717.50
  6. Step 6: Final answer
    x = 228,078.22

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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.