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Finding the Fourth Proportional to 270,987.82, 373,812.53 and 213,415.04

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Solution

The fourth proportional to 270,987.82, 373,812.53 and 213,415.04 is: 294,394.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,987.82 : 373,812.53 = 213,415.04 : x
  2. Step 2: Convert to fraction form
    270,987.82/373,812.53 = 213,415.04/x
  3. Step 3: Cross multiply
    270,987.82x = 373,812.53 × 213,415.04
  4. Step 4: Simplify right side
    270,987.82x = 79,777,215,909.91
  5. Step 5: Solve for x
    x = 79,777,215,909.91/270,987.82
  6. Step 6: Final answer
    x = 294,394.10

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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.