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Finding the Fourth Proportional to 203,026.23, 304,368.03 and 127,980.90

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Solution

The fourth proportional to 203,026.23, 304,368.03 and 127,980.90 is: 191,863.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,026.23 : 304,368.03 = 127,980.90 : x
  2. Step 2: Convert to fraction form
    203,026.23/304,368.03 = 127,980.90/x
  3. Step 3: Cross multiply
    203,026.23x = 304,368.03 × 127,980.90
  4. Step 4: Simplify right side
    203,026.23x = 38,953,294,410.63
  5. Step 5: Solve for x
    x = 38,953,294,410.63/203,026.23
  6. Step 6: Final answer
    x = 191,863.36

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1.5x scale

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.