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Finding the Fourth Proportional to 340,079.40, 510,119.10 and 322,972.20

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Solution

The fourth proportional to 340,079.40, 510,119.10 and 322,972.20 is: 484,458.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,079.40 : 510,119.10 = 322,972.20 : x
  2. Step 2: Convert to fraction form
    340,079.40/510,119.10 = 322,972.20/x
  3. Step 3: Cross multiply
    340,079.40x = 510,119.10 × 322,972.20
  4. Step 4: Simplify right side
    340,079.40x = 164,754,287,989.02
  5. Step 5: Solve for x
    x = 164,754,287,989.02/340,079.40
  6. Step 6: Final answer
    x = 484,458.30

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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.