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Finding the Fourth Proportional to 203,178.98, 304,788.50 and 70,041.72

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Solution

The fourth proportional to 203,178.98, 304,788.50 and 70,041.72 is: 105,069.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,178.98 : 304,788.50 = 70,041.72 : x
  2. Step 2: Convert to fraction form
    203,178.98/304,788.50 = 70,041.72/x
  3. Step 3: Cross multiply
    203,178.98x = 304,788.50 × 70,041.72
  4. Step 4: Simplify right side
    203,178.98x = 21,347,910,776.22
  5. Step 5: Solve for x
    x = 21,347,910,776.22/203,178.98
  6. Step 6: Final answer
    x = 105,069.48

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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.