Home / 401,325.12-553,825.74-220,034.06

Finding the Fourth Proportional to 401,325.12, 553,825.74 and 220,034.06

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Solution

The fourth proportional to 401,325.12, 553,825.74 and 220,034.06 is: 303,645.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,325.12 : 553,825.74 = 220,034.06 : x
  2. Step 2: Convert to fraction form
    401,325.12/553,825.74 = 220,034.06/x
  3. Step 3: Cross multiply
    401,325.12x = 553,825.74 × 220,034.06
  4. Step 4: Simplify right side
    401,325.12x = 121,860,524,999.86
  5. Step 5: Solve for x
    x = 121,860,524,999.86/401,325.12
  6. Step 6: Final answer
    x = 303,645.40

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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.