Home / 384,454.45-530,562.15-212,381.29

Finding the Fourth Proportional to 384,454.45, 530,562.15 and 212,381.29

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Solution

The fourth proportional to 384,454.45, 530,562.15 and 212,381.29 is: 293,094.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,454.45 : 530,562.15 = 212,381.29 : x
  2. Step 2: Convert to fraction form
    384,454.45/530,562.15 = 212,381.29/x
  3. Step 3: Cross multiply
    384,454.45x = 530,562.15 × 212,381.29
  4. Step 4: Simplify right side
    384,454.45x = 112,681,473,842.17
  5. Step 5: Solve for x
    x = 112,681,473,842.17/384,454.45
  6. Step 6: Final answer
    x = 293,094.47

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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.