Home / 401,256.96-553,774.20-229,200.63

Finding the Fourth Proportional to 401,256.96, 553,774.20 and 229,200.63

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Solution

The fourth proportional to 401,256.96, 553,774.20 and 229,200.63 is: 316,319.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,256.96 : 553,774.20 = 229,200.63 : x
  2. Step 2: Convert to fraction form
    401,256.96/553,774.20 = 229,200.63/x
  3. Step 3: Cross multiply
    401,256.96x = 553,774.20 × 229,200.63
  4. Step 4: Simplify right side
    401,256.96x = 126,925,395,517.75
  5. Step 5: Solve for x
    x = 126,925,395,517.75/401,256.96
  6. Step 6: Final answer
    x = 316,319.49

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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.