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Finding the Fourth Proportional to 340,598.12, 510,371.58 and 215,676.68

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Solution

The fourth proportional to 340,598.12, 510,371.58 and 215,676.68 is: 323,182.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,598.12 : 510,371.58 = 215,676.68 : x
  2. Step 2: Convert to fraction form
    340,598.12/510,371.58 = 215,676.68/x
  3. Step 3: Cross multiply
    340,598.12x = 510,371.58 × 215,676.68
  4. Step 4: Simplify right side
    340,598.12x = 110,075,247,940.75
  5. Step 5: Solve for x
    x = 110,075,247,940.75/340,598.12
  6. Step 6: Final answer
    x = 323,182.19

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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.