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Finding the Fourth Proportional to 348,251.85, 480,383.94 and 218,985.74

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Solution

The fourth proportional to 348,251.85, 480,383.94 and 218,985.74 is: 302,072.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,251.85 : 480,383.94 = 218,985.74 : x
  2. Step 2: Convert to fraction form
    348,251.85/480,383.94 = 218,985.74/x
  3. Step 3: Cross multiply
    348,251.85x = 480,383.94 × 218,985.74
  4. Step 4: Simplify right side
    348,251.85x = 105,197,229,606.96
  5. Step 5: Solve for x
    x = 105,197,229,606.96/348,251.85
  6. Step 6: Final answer
    x = 302,072.28

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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.