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Finding the Fourth Proportional to 360,988.60, 498,007.83 and 217,669.03

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Solution

The fourth proportional to 360,988.60, 498,007.83 and 217,669.03 is: 300,288.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,988.60 : 498,007.83 = 217,669.03 : x
  2. Step 2: Convert to fraction form
    360,988.60/498,007.83 = 217,669.03/x
  3. Step 3: Cross multiply
    360,988.60x = 498,007.83 × 217,669.03
  4. Step 4: Simplify right side
    360,988.60x = 108,400,881,288.51
  5. Step 5: Solve for x
    x = 108,400,881,288.51/360,988.60
  6. Step 6: Final answer
    x = 300,288.93

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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.