Home / 401,245.20-553,777.32-231,446.16

Finding the Fourth Proportional to 401,245.20, 553,777.32 and 231,446.16

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Solution

The fourth proportional to 401,245.20, 553,777.32 and 231,446.16 is: 319,429.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,245.20 : 553,777.32 = 231,446.16 : x
  2. Step 2: Convert to fraction form
    401,245.20/553,777.32 = 231,446.16/x
  3. Step 3: Cross multiply
    401,245.20x = 553,777.32 × 231,446.16
  4. Step 4: Simplify right side
    401,245.20x = 128,169,634,209.09
  5. Step 5: Solve for x
    x = 128,169,634,209.09/401,245.20
  6. Step 6: Final answer
    x = 319,429.70

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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.