Home / 210,280.74-315,098.06-142,724.92

Finding the Fourth Proportional to 210,280.74, 315,098.06 and 142,724.92

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Solution

The fourth proportional to 210,280.74, 315,098.06 and 142,724.92 is: 213,868.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,280.74 : 315,098.06 = 142,724.92 : x
  2. Step 2: Convert to fraction form
    210,280.74/315,098.06 = 142,724.92/x
  3. Step 3: Cross multiply
    210,280.74x = 315,098.06 × 142,724.92
  4. Step 4: Simplify right side
    210,280.74x = 44,972,344,974.72
  5. Step 5: Solve for x
    x = 44,972,344,974.72/210,280.74
  6. Step 6: Final answer
    x = 213,868.11

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1.5x scale

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.