Home / 384,433.25-530,515.77-212,363.05

Finding the Fourth Proportional to 384,433.25, 530,515.77 and 212,363.05

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Solution

The fourth proportional to 384,433.25, 530,515.77 and 212,363.05 is: 293,059.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,433.25 : 530,515.77 = 212,363.05 : x
  2. Step 2: Convert to fraction form
    384,433.25/530,515.77 = 212,363.05/x
  3. Step 3: Cross multiply
    384,433.25x = 530,515.77 × 212,363.05
  4. Step 4: Simplify right side
    384,433.25x = 112,661,946,459.39
  5. Step 5: Solve for x
    x = 112,661,946,459.39/384,433.25
  6. Step 6: Final answer
    x = 293,059.84

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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.