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Finding the Fourth Proportional to 318,842.62, 440,022.71 and 175,602.62

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Solution

The fourth proportional to 318,842.62, 440,022.71 and 175,602.62 is: 242,342.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,842.62 : 440,022.71 = 175,602.62 : x
  2. Step 2: Convert to fraction form
    318,842.62/440,022.71 = 175,602.62/x
  3. Step 3: Cross multiply
    318,842.62x = 440,022.71 × 175,602.62
  4. Step 4: Simplify right side
    318,842.62x = 77,269,142,274.56
  5. Step 5: Solve for x
    x = 77,269,142,274.56/318,842.62
  6. Step 6: Final answer
    x = 242,342.58

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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.