Home / 210,281.24-315,098.81-142,725.42

Finding the Fourth Proportional to 210,281.24, 315,098.81 and 142,725.42

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Solution

The fourth proportional to 210,281.24, 315,098.81 and 142,725.42 is: 213,868.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,281.24 : 315,098.81 = 142,725.42 : x
  2. Step 2: Convert to fraction form
    210,281.24/315,098.81 = 142,725.42/x
  3. Step 3: Cross multiply
    210,281.24x = 315,098.81 × 142,725.42
  4. Step 4: Simplify right side
    210,281.24x = 44,972,609,567.82
  5. Step 5: Solve for x
    x = 44,972,609,567.82/210,281.24
  6. Step 6: Final answer
    x = 213,868.86

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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.