Home / 1,210.69-1,815.79-332.96

Finding the Fourth Proportional to 1,210.69, 1,815.79 and 332.96

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Solution

The fourth proportional to 1,210.69, 1,815.79 and 332.96 is: 499.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210.69 : 1,815.79 = 332.96 : x
  2. Step 2: Convert to fraction form
    1,210.69/1,815.79 = 332.96/x
  3. Step 3: Cross multiply
    1,210.69x = 1,815.79 × 332.96
  4. Step 4: Simplify right side
    1,210.69x = 604,595.27
  5. Step 5: Solve for x
    x = 604,595.27/1,210.69
  6. Step 6: Final answer
    x = 499.38

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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.