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Finding the Fourth Proportional to 340,340.82, 510,472.35 and 129,974.10

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Solution

The fourth proportional to 340,340.82, 510,472.35 and 129,974.10 is: 194,946.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,340.82 : 510,472.35 = 129,974.10 : x
  2. Step 2: Convert to fraction form
    340,340.82/510,472.35 = 129,974.10/x
  3. Step 3: Cross multiply
    340,340.82x = 510,472.35 × 129,974.10
  4. Step 4: Simplify right side
    340,340.82x = 66,348,184,266.14
  5. Step 5: Solve for x
    x = 66,348,184,266.14/340,340.82
  6. Step 6: Final answer
    x = 194,946.30

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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.