Home / 287,727.77-397,100.12-165,258.50

Finding the Fourth Proportional to 287,727.77, 397,100.12 and 165,258.50

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Solution

The fourth proportional to 287,727.77, 397,100.12 and 165,258.50 is: 228,077.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,727.77 : 397,100.12 = 165,258.50 : x
  2. Step 2: Convert to fraction form
    287,727.77/397,100.12 = 165,258.50/x
  3. Step 3: Cross multiply
    287,727.77x = 397,100.12 × 165,258.50
  4. Step 4: Simplify right side
    287,727.77x = 65,624,171,649.34
  5. Step 5: Solve for x
    x = 65,624,171,649.34/287,727.77
  6. Step 6: Final answer
    x = 228,077.30

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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.