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Finding the Fourth Proportional to 314,801.20, 472,248.24 and 115,074.88

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Solution

The fourth proportional to 314,801.20, 472,248.24 and 115,074.88 is: 172,629.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,801.20 : 472,248.24 = 115,074.88 : x
  2. Step 2: Convert to fraction form
    314,801.20/472,248.24 = 115,074.88/x
  3. Step 3: Cross multiply
    314,801.20x = 472,248.24 × 115,074.88
  4. Step 4: Simplify right side
    314,801.20x = 54,343,909,548.21
  5. Step 5: Solve for x
    x = 54,343,909,548.21/314,801.20
  6. Step 6: Final answer
    x = 172,629.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.