Home / 1,210.16-1,815.23-344.47

Finding the Fourth Proportional to 1,210.16, 1,815.23 and 344.47

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Solution

The fourth proportional to 1,210.16, 1,815.23 and 344.47 is: 516.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210.16 : 1,815.23 = 344.47 : x
  2. Step 2: Convert to fraction form
    1,210.16/1,815.23 = 344.47/x
  3. Step 3: Cross multiply
    1,210.16x = 1,815.23 × 344.47
  4. Step 4: Simplify right side
    1,210.16x = 625,292.28
  5. Step 5: Solve for x
    x = 625,292.28/1,210.16
  6. Step 6: Final answer
    x = 516.70

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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.