Home / 398,289.12-549,590.58-226,144.32

Finding the Fourth Proportional to 398,289.12, 549,590.58 and 226,144.32

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Solution

The fourth proportional to 398,289.12, 549,590.58 and 226,144.32 is: 312,051.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,289.12 : 549,590.58 = 226,144.32 : x
  2. Step 2: Convert to fraction form
    398,289.12/549,590.58 = 226,144.32/x
  3. Step 3: Cross multiply
    398,289.12x = 549,590.58 × 226,144.32
  4. Step 4: Simplify right side
    398,289.12x = 124,286,787,992.51
  5. Step 5: Solve for x
    x = 124,286,787,992.51/398,289.12
  6. Step 6: Final answer
    x = 312,051.68

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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.