Home / 210,331.38-315,497.06-111,812.34

Finding the Fourth Proportional to 210,331.38, 315,497.06 and 111,812.34

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Solution

The fourth proportional to 210,331.38, 315,497.06 and 111,812.34 is: 167,718.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,331.38 : 315,497.06 = 111,812.34 : x
  2. Step 2: Convert to fraction form
    210,331.38/315,497.06 = 111,812.34/x
  3. Step 3: Cross multiply
    210,331.38x = 315,497.06 × 111,812.34
  4. Step 4: Simplify right side
    210,331.38x = 35,276,464,541.72
  5. Step 5: Solve for x
    x = 35,276,464,541.72/210,331.38
  6. Step 6: Final answer
    x = 167,718.50

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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.