Home / 309,838.12-464,701.26-82,135.24

Finding the Fourth Proportional to 309,838.12, 464,701.26 and 82,135.24

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Solution

The fourth proportional to 309,838.12, 464,701.26 and 82,135.24 is: 123,188.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,838.12 : 464,701.26 = 82,135.24 : x
  2. Step 2: Convert to fraction form
    309,838.12/464,701.26 = 82,135.24/x
  3. Step 3: Cross multiply
    309,838.12x = 464,701.26 × 82,135.24
  4. Step 4: Simplify right side
    309,838.12x = 38,168,349,518.40
  5. Step 5: Solve for x
    x = 38,168,349,518.40/309,838.12
  6. Step 6: Final answer
    x = 123,188.04

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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.