Home / 340,284.72-510,500.88-103,621.20

Finding the Fourth Proportional to 340,284.72, 510,500.88 and 103,621.20

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Solution

The fourth proportional to 340,284.72, 510,500.88 and 103,621.20 is: 155,454.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,284.72 : 510,500.88 = 103,621.20 : x
  2. Step 2: Convert to fraction form
    340,284.72/510,500.88 = 103,621.20/x
  3. Step 3: Cross multiply
    340,284.72x = 510,500.88 × 103,621.20
  4. Step 4: Simplify right side
    340,284.72x = 52,898,713,786.66
  5. Step 5: Solve for x
    x = 52,898,713,786.66/340,284.72
  6. Step 6: Final answer
    x = 155,454.27

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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.