Home / 397,864.59-549,066.38-223,465.47

Finding the Fourth Proportional to 397,864.59, 549,066.38 and 223,465.47

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Solution

The fourth proportional to 397,864.59, 549,066.38 and 223,465.47 is: 308,389.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,864.59 : 549,066.38 = 223,465.47 : x
  2. Step 2: Convert to fraction form
    397,864.59/549,066.38 = 223,465.47/x
  3. Step 3: Cross multiply
    397,864.59x = 549,066.38 × 223,465.47
  4. Step 4: Simplify right side
    397,864.59x = 122,697,375,550.57
  5. Step 5: Solve for x
    x = 122,697,375,550.57/397,864.59
  6. Step 6: Final answer
    x = 308,389.79

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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.