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Finding the Fourth Proportional to 425,579.04, 587,298.80 and 231,987.12

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Solution

The fourth proportional to 425,579.04, 587,298.80 and 231,987.12 is: 320,142.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,579.04 : 587,298.80 = 231,987.12 : x
  2. Step 2: Convert to fraction form
    425,579.04/587,298.80 = 231,987.12/x
  3. Step 3: Cross multiply
    425,579.04x = 587,298.80 × 231,987.12
  4. Step 4: Simplify right side
    425,579.04x = 136,245,757,191.46
  5. Step 5: Solve for x
    x = 136,245,757,191.46/425,579.04
  6. Step 6: Final answer
    x = 320,142.08

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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.