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Finding the Fourth Proportional to 340,245.45, 510,369.37 and 100,362.30

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Solution

The fourth proportional to 340,245.45, 510,369.37 and 100,362.30 is: 150,543.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,245.45 : 510,369.37 = 100,362.30 : x
  2. Step 2: Convert to fraction form
    340,245.45/510,369.37 = 100,362.30/x
  3. Step 3: Cross multiply
    340,245.45x = 510,369.37 × 100,362.30
  4. Step 4: Simplify right side
    340,245.45x = 51,221,845,387.63
  5. Step 5: Solve for x
    x = 51,221,845,387.63/340,245.45
  6. Step 6: Final answer
    x = 150,543.81

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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.