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Finding the Fourth Proportional to 340,245.08, 510,555.54 and 140,519

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Solution

The fourth proportional to 340,245.08, 510,555.54 and 140,519 is: 210,856.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,245.08 : 510,555.54 = 140,519 : x
  2. Step 2: Convert to fraction form
    340,245.08/510,555.54 = 140,519/x
  3. Step 3: Cross multiply
    340,245.08x = 510,555.54 × 140,519
  4. Step 4: Simplify right side
    340,245.08x = 71,742,753,925.26
  5. Step 5: Solve for x
    x = 71,742,753,925.26/340,245.08
  6. Step 6: Final answer
    x = 210,856.11

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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.