Home / 347,496.21-520,261.38-220,822.47

Finding the Fourth Proportional to 347,496.21, 520,261.38 and 220,822.47

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Solution

The fourth proportional to 347,496.21, 520,261.38 and 220,822.47 is: 330,609.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,496.21 : 520,261.38 = 220,822.47 : x
  2. Step 2: Convert to fraction form
    347,496.21/520,261.38 = 220,822.47/x
  3. Step 3: Cross multiply
    347,496.21x = 520,261.38 × 220,822.47
  4. Step 4: Simplify right side
    347,496.21x = 114,885,402,977.21
  5. Step 5: Solve for x
    x = 114,885,402,977.21/347,496.21
  6. Step 6: Final answer
    x = 330,609.08

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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.