Home / 403,018.42-556,165.39-221,726.46

Finding the Fourth Proportional to 403,018.42, 556,165.39 and 221,726.46

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Solution

The fourth proportional to 403,018.42, 556,165.39 and 221,726.46 is: 305,982.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,018.42 : 556,165.39 = 221,726.46 : x
  2. Step 2: Convert to fraction form
    403,018.42/556,165.39 = 221,726.46/x
  3. Step 3: Cross multiply
    403,018.42x = 556,165.39 × 221,726.46
  4. Step 4: Simplify right side
    403,018.42x = 123,316,580,353.62
  5. Step 5: Solve for x
    x = 123,316,580,353.62/403,018.42
  6. Step 6: Final answer
    x = 305,982.49

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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.