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Finding the Fourth Proportional to 212,760.81, 293,606.03 and 115,965.50

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Solution

The fourth proportional to 212,760.81, 293,606.03 and 115,965.50 is: 160,030.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,760.81 : 293,606.03 = 115,965.50 : x
  2. Step 2: Convert to fraction form
    212,760.81/293,606.03 = 115,965.50/x
  3. Step 3: Cross multiply
    212,760.81x = 293,606.03 × 115,965.50
  4. Step 4: Simplify right side
    212,760.81x = 34,048,168,893.85
  5. Step 5: Solve for x
    x = 34,048,168,893.85/212,760.81
  6. Step 6: Final answer
    x = 160,030.27

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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.