Home / 210,877.10-315,854.85-163,760.30

Finding the Fourth Proportional to 210,877.10, 315,854.85 and 163,760.30

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Solution

The fourth proportional to 210,877.10, 315,854.85 and 163,760.30 is: 245,282.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,877.10 : 315,854.85 = 163,760.30 : x
  2. Step 2: Convert to fraction form
    210,877.10/315,854.85 = 163,760.30/x
  3. Step 3: Cross multiply
    210,877.10x = 315,854.85 × 163,760.30
  4. Step 4: Simplify right side
    210,877.10x = 51,724,484,992.46
  5. Step 5: Solve for x
    x = 51,724,484,992.46/210,877.10
  6. Step 6: Final answer
    x = 245,282.61

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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.