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Finding the Fourth Proportional to 340,464.80, 510,697.20 and 103,807.10

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Solution

The fourth proportional to 340,464.80, 510,697.20 and 103,807.10 is: 155,710.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,464.80 : 510,697.20 = 103,807.10 : x
  2. Step 2: Convert to fraction form
    340,464.80/510,697.20 = 103,807.10/x
  3. Step 3: Cross multiply
    340,464.80x = 510,697.20 × 103,807.10
  4. Step 4: Simplify right side
    340,464.80x = 53,013,995,310.12
  5. Step 5: Solve for x
    x = 53,013,995,310.12/340,464.80
  6. Step 6: Final answer
    x = 155,710.65

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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.