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Finding the Fourth Proportional to 347,392.13, 479,401.13 and 188,416.13

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Solution

The fourth proportional to 347,392.13, 479,401.13 and 188,416.13 is: 260,014.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,392.13 : 479,401.13 = 188,416.13 : x
  2. Step 2: Convert to fraction form
    347,392.13/479,401.13 = 188,416.13/x
  3. Step 3: Cross multiply
    347,392.13x = 479,401.13 × 188,416.13
  4. Step 4: Simplify right side
    347,392.13x = 90,326,903,706.26
  5. Step 5: Solve for x
    x = 90,326,903,706.26/347,392.13
  6. Step 6: Final answer
    x = 260,014.25

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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.