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Finding the Fourth Proportional to 384,110.29, 530,072.30 and 212,028.36

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Solution

The fourth proportional to 384,110.29, 530,072.30 and 212,028.36 is: 292,599.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,110.29 : 530,072.30 = 212,028.36 : x
  2. Step 2: Convert to fraction form
    384,110.29/530,072.30 = 212,028.36/x
  3. Step 3: Cross multiply
    384,110.29x = 530,072.30 × 212,028.36
  4. Step 4: Simplify right side
    384,110.29x = 112,390,360,450.43
  5. Step 5: Solve for x
    x = 112,390,360,450.43/384,110.29
  6. Step 6: Final answer
    x = 292,599.19

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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.