Home / 210,730.10-315,317.55-192,067.70

Finding the Fourth Proportional to 210,730.10, 315,317.55 and 192,067.70

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Solution

The fourth proportional to 210,730.10, 315,317.55 and 192,067.70 is: 287,392.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,730.10 : 315,317.55 = 192,067.70 : x
  2. Step 2: Convert to fraction form
    210,730.10/315,317.55 = 192,067.70/x
  3. Step 3: Cross multiply
    210,730.10x = 315,317.55 × 192,067.70
  4. Step 4: Simplify right side
    210,730.10x = 60,562,316,598.14
  5. Step 5: Solve for x
    x = 60,562,316,598.14/210,730.10
  6. Step 6: Final answer
    x = 287,392.81

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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.