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Finding the Fourth Proportional to 485,267.83, 727,901.74 and 148,309.45

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Solution

The fourth proportional to 485,267.83, 727,901.74 and 148,309.45 is: 222,464.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,267.83 : 727,901.74 = 148,309.45 : x
  2. Step 2: Convert to fraction form
    485,267.83/727,901.74 = 148,309.45/x
  3. Step 3: Cross multiply
    485,267.83x = 727,901.74 × 148,309.45
  4. Step 4: Simplify right side
    485,267.83x = 107,954,705,079.08
  5. Step 5: Solve for x
    x = 107,954,705,079.08/485,267.83
  6. Step 6: Final answer
    x = 222,464.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.