Home / 210,875.10-315,851.85-163,758.30

Finding the Fourth Proportional to 210,875.10, 315,851.85 and 163,758.30

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Solution

The fourth proportional to 210,875.10, 315,851.85 and 163,758.30 is: 245,279.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,875.10 : 315,851.85 = 163,758.30 : x
  2. Step 2: Convert to fraction form
    210,875.10/315,851.85 = 163,758.30/x
  3. Step 3: Cross multiply
    210,875.10x = 315,851.85 × 163,758.30
  4. Step 4: Simplify right side
    210,875.10x = 51,723,362,007.86
  5. Step 5: Solve for x
    x = 51,723,362,007.86/210,875.10
  6. Step 6: Final answer
    x = 245,279.61

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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.