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Finding the Fourth Proportional to 384,635.08, 530,773 and 212,549.08

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Solution

The fourth proportional to 384,635.08, 530,773 and 212,549.08 is: 293,304.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,635.08 : 530,773 = 212,549.08 : x
  2. Step 2: Convert to fraction form
    384,635.08/530,773 = 212,549.08/x
  3. Step 3: Cross multiply
    384,635.08x = 530,773 × 212,549.08
  4. Step 4: Simplify right side
    384,635.08x = 112,815,312,838.84
  5. Step 5: Solve for x
    x = 112,815,312,838.84/384,635.08
  6. Step 6: Final answer
    x = 293,304.79

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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.