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Finding the Fourth Proportional to 222,750.31, 307,395.25 and 120,779.15

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Solution

The fourth proportional to 222,750.31, 307,395.25 and 120,779.15 is: 166,675.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,750.31 : 307,395.25 = 120,779.15 : x
  2. Step 2: Convert to fraction form
    222,750.31/307,395.25 = 120,779.15/x
  3. Step 3: Cross multiply
    222,750.31x = 307,395.25 × 120,779.15
  4. Step 4: Simplify right side
    222,750.31x = 37,126,937,009.04
  5. Step 5: Solve for x
    x = 37,126,937,009.04/222,750.31
  6. Step 6: Final answer
    x = 166,675.13

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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.