Home / 203,437.20-304,937.10-77,028.60

Finding the Fourth Proportional to 203,437.20, 304,937.10 and 77,028.60

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Solution

The fourth proportional to 203,437.20, 304,937.10 and 77,028.60 is: 115,460.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,437.20 : 304,937.10 = 77,028.60 : x
  2. Step 2: Convert to fraction form
    203,437.20/304,937.10 = 77,028.60/x
  3. Step 3: Cross multiply
    203,437.20x = 304,937.10 × 77,028.60
  4. Step 4: Simplify right side
    203,437.20x = 23,488,877,901.06
  5. Step 5: Solve for x
    x = 23,488,877,901.06/203,437.20
  6. Step 6: Final answer
    x = 115,460.09

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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.