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Finding the Fourth Proportional to 212,894.72, 293,808.48 and 117,401.12

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Solution

The fourth proportional to 212,894.72, 293,808.48 and 117,401.12 is: 162,021.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,894.72 : 293,808.48 = 117,401.12 : x
  2. Step 2: Convert to fraction form
    212,894.72/293,808.48 = 117,401.12/x
  3. Step 3: Cross multiply
    212,894.72x = 293,808.48 × 117,401.12
  4. Step 4: Simplify right side
    212,894.72x = 34,493,444,617.50
  5. Step 5: Solve for x
    x = 34,493,444,617.50/212,894.72
  6. Step 6: Final answer
    x = 162,021.14

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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.