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Finding the Fourth Proportional to 376,129.64, 519,058.88 and 214,988.16

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Solution

The fourth proportional to 376,129.64, 519,058.88 and 214,988.16 is: 296,683.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,129.64 : 519,058.88 = 214,988.16 : x
  2. Step 2: Convert to fraction form
    376,129.64/519,058.88 = 214,988.16/x
  3. Step 3: Cross multiply
    376,129.64x = 519,058.88 × 214,988.16
  4. Step 4: Simplify right side
    376,129.64x = 111,591,513,542.86
  5. Step 5: Solve for x
    x = 111,591,513,542.86/376,129.64
  6. Step 6: Final answer
    x = 296,683.65

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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.