Home / 402,944.16-556,064.22-221,669.87

Finding the Fourth Proportional to 402,944.16, 556,064.22 and 221,669.87

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Solution

The fourth proportional to 402,944.16, 556,064.22 and 221,669.87 is: 305,905.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,944.16 : 556,064.22 = 221,669.87 : x
  2. Step 2: Convert to fraction form
    402,944.16/556,064.22 = 221,669.87/x
  3. Step 3: Cross multiply
    402,944.16x = 556,064.22 × 221,669.87
  4. Step 4: Simplify right side
    402,944.16x = 123,262,680,860.54
  5. Step 5: Solve for x
    x = 123,262,680,860.54/402,944.16
  6. Step 6: Final answer
    x = 305,905.12

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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.