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Finding the Fourth Proportional to 481,303.28, 663,990.04 and 290,210.51

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Solution

The fourth proportional to 481,303.28, 663,990.04 and 290,210.51 is: 400,364.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,303.28 : 663,990.04 = 290,210.51 : x
  2. Step 2: Convert to fraction form
    481,303.28/663,990.04 = 290,210.51/x
  3. Step 3: Cross multiply
    481,303.28x = 663,990.04 × 290,210.51
  4. Step 4: Simplify right side
    481,303.28x = 192,696,889,077.77
  5. Step 5: Solve for x
    x = 192,696,889,077.77/481,303.28
  6. Step 6: Final answer
    x = 400,364.79

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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.