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Finding the Fourth Proportional to 208,996.02, 288,534.06 and 137,583.63

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Solution

The fourth proportional to 208,996.02, 288,534.06 and 137,583.63 is: 189,944.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,996.02 : 288,534.06 = 137,583.63 : x
  2. Step 2: Convert to fraction form
    208,996.02/288,534.06 = 137,583.63/x
  3. Step 3: Cross multiply
    208,996.02x = 288,534.06 × 137,583.63
  4. Step 4: Simplify right side
    208,996.02x = 39,697,564,435.44
  5. Step 5: Solve for x
    x = 39,697,564,435.44/208,996.02
  6. Step 6: Final answer
    x = 189,944.12

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1.5x scale

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.