Home / 215,837.40-297,841.68-120,338.40

Finding the Fourth Proportional to 215,837.40, 297,841.68 and 120,338.40

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Solution

The fourth proportional to 215,837.40, 297,841.68 and 120,338.40 is: 166,059.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,837.40 : 297,841.68 = 120,338.40 : x
  2. Step 2: Convert to fraction form
    215,837.40/297,841.68 = 120,338.40/x
  3. Step 3: Cross multiply
    215,837.40x = 297,841.68 × 120,338.40
  4. Step 4: Simplify right side
    215,837.40x = 35,841,791,224.51
  5. Step 5: Solve for x
    x = 35,841,791,224.51/215,837.40
  6. Step 6: Final answer
    x = 166,059.22

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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.