Home / 210,329.71-315,175.33-154,207.18

Finding the Fourth Proportional to 210,329.71, 315,175.33 and 154,207.18

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Solution

The fourth proportional to 210,329.71, 315,175.33 and 154,207.18 is: 231,076.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,329.71 : 315,175.33 = 154,207.18 : x
  2. Step 2: Convert to fraction form
    210,329.71/315,175.33 = 154,207.18/x
  3. Step 3: Cross multiply
    210,329.71x = 315,175.33 × 154,207.18
  4. Step 4: Simplify right side
    210,329.71x = 48,602,298,844.87
  5. Step 5: Solve for x
    x = 48,602,298,844.87/210,329.71
  6. Step 6: Final answer
    x = 231,076.72

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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.