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Finding the Fourth Proportional to 318,614.21, 439,670.88 and 175,346.87

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Solution

The fourth proportional to 318,614.21, 439,670.88 and 175,346.87 is: 241,969.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,614.21 : 439,670.88 = 175,346.87 : x
  2. Step 2: Convert to fraction form
    318,614.21/439,670.88 = 175,346.87/x
  3. Step 3: Cross multiply
    318,614.21x = 439,670.88 × 175,346.87
  4. Step 4: Simplify right side
    318,614.21x = 77,094,912,638.15
  5. Step 5: Solve for x
    x = 77,094,912,638.15/318,614.21
  6. Step 6: Final answer
    x = 241,969.47

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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.