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Finding the Fourth Proportional to 407,427.87, 562,239.72 and 226,139.34

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Solution

The fourth proportional to 407,427.87, 562,239.72 and 226,139.34 is: 312,066.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,427.87 : 562,239.72 = 226,139.34 : x
  2. Step 2: Convert to fraction form
    407,427.87/562,239.72 = 226,139.34/x
  3. Step 3: Cross multiply
    407,427.87x = 562,239.72 × 226,139.34
  4. Step 4: Simplify right side
    407,427.87x = 127,144,519,202.59
  5. Step 5: Solve for x
    x = 127,144,519,202.59/407,427.87
  6. Step 6: Final answer
    x = 312,066.33

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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.