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Finding the Fourth Proportional to 203,003.57, 304,366.95 and 102,970.88

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Solution

The fourth proportional to 203,003.57, 304,366.95 and 102,970.88 is: 154,386.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,003.57 : 304,366.95 = 102,970.88 : x
  2. Step 2: Convert to fraction form
    203,003.57/304,366.95 = 102,970.88/x
  3. Step 3: Cross multiply
    203,003.57x = 304,366.95 × 102,970.88
  4. Step 4: Simplify right side
    203,003.57x = 31,340,931,162.58
  5. Step 5: Solve for x
    x = 31,340,931,162.58/203,003.57
  6. Step 6: Final answer
    x = 154,386.11

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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.