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Finding the Fourth Proportional to 201,839.70, 302,500.35 and 122,870.10

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Solution

The fourth proportional to 201,839.70, 302,500.35 and 122,870.10 is: 184,147.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,839.70 : 302,500.35 = 122,870.10 : x
  2. Step 2: Convert to fraction form
    201,839.70/302,500.35 = 122,870.10/x
  3. Step 3: Cross multiply
    201,839.70x = 302,500.35 × 122,870.10
  4. Step 4: Simplify right side
    201,839.70x = 37,168,248,254.54
  5. Step 5: Solve for x
    x = 37,168,248,254.54/201,839.70
  6. Step 6: Final answer
    x = 184,147.36

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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.