Home / 402,946.16-556,066.97-221,671.87

Finding the Fourth Proportional to 402,946.16, 556,066.97 and 221,671.87

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Solution

The fourth proportional to 402,946.16, 556,066.97 and 221,671.87 is: 305,907.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,946.16 : 556,066.97 = 221,671.87 : x
  2. Step 2: Convert to fraction form
    402,946.16/556,066.97 = 221,671.87/x
  3. Step 3: Cross multiply
    402,946.16x = 556,066.97 × 221,671.87
  4. Step 4: Simplify right side
    402,946.16x = 123,264,404,249.15
  5. Step 5: Solve for x
    x = 123,264,404,249.15/402,946.16
  6. Step 6: Final answer
    x = 305,907.88

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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.