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Finding the Fourth Proportional to 376,473.96, 519,537 and 215,319.36

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Solution

The fourth proportional to 376,473.96, 519,537 and 215,319.36 is: 297,142.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,473.96 : 519,537 = 215,319.36 : x
  2. Step 2: Convert to fraction form
    376,473.96/519,537 = 215,319.36/x
  3. Step 3: Cross multiply
    376,473.96x = 519,537 × 215,319.36
  4. Step 4: Simplify right side
    376,473.96x = 111,866,374,336.32
  5. Step 5: Solve for x
    x = 111,866,374,336.32/376,473.96
  6. Step 6: Final answer
    x = 297,142.40

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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.