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Finding the Fourth Proportional to 384,160.94, 530,150.61 and 212,078.51

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Solution

The fourth proportional to 384,160.94, 530,150.61 and 212,078.51 is: 292,673.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,160.94 : 530,150.61 = 212,078.51 : x
  2. Step 2: Convert to fraction form
    384,160.94/530,150.61 = 212,078.51/x
  3. Step 3: Cross multiply
    384,160.94x = 530,150.61 × 212,078.51
  4. Step 4: Simplify right side
    384,160.94x = 112,433,551,444.39
  5. Step 5: Solve for x
    x = 112,433,551,444.39/384,160.94
  6. Step 6: Final answer
    x = 292,673.04

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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.