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Finding the Fourth Proportional to 349,178.20, 522,989.70 and 302,522.20

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Solution

The fourth proportional to 349,178.20, 522,989.70 and 302,522.20 is: 453,109.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,178.20 : 522,989.70 = 302,522.20 : x
  2. Step 2: Convert to fraction form
    349,178.20/522,989.70 = 302,522.20/x
  3. Step 3: Cross multiply
    349,178.20x = 522,989.70 × 302,522.20
  4. Step 4: Simplify right side
    349,178.20x = 158,215,994,621.34
  5. Step 5: Solve for x
    x = 158,215,994,621.34/349,178.20
  6. Step 6: Final answer
    x = 453,109.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.