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Finding the Fourth Proportional to 340,302.40, 509,171.06 and 203,017.81

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Solution

The fourth proportional to 340,302.40, 509,171.06 and 203,017.81 is: 303,761.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,302.40 : 509,171.06 = 203,017.81 : x
  2. Step 2: Convert to fraction form
    340,302.40/509,171.06 = 203,017.81/x
  3. Step 3: Cross multiply
    340,302.40x = 509,171.06 × 203,017.81
  4. Step 4: Simplify right side
    340,302.40x = 103,370,791,131.87
  5. Step 5: Solve for x
    x = 103,370,791,131.87/340,302.40
  6. Step 6: Final answer
    x = 303,761.57

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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.