Home / 213,078.04-319,312.44-156,474.16

Finding the Fourth Proportional to 213,078.04, 319,312.44 and 156,474.16

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Solution

The fourth proportional to 213,078.04, 319,312.44 and 156,474.16 is: 234,487.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,078.04 : 319,312.44 = 156,474.16 : x
  2. Step 2: Convert to fraction form
    213,078.04/319,312.44 = 156,474.16/x
  3. Step 3: Cross multiply
    213,078.04x = 319,312.44 × 156,474.16
  4. Step 4: Simplify right side
    213,078.04x = 49,964,145,826.55
  5. Step 5: Solve for x
    x = 49,964,145,826.55/213,078.04
  6. Step 6: Final answer
    x = 234,487.54

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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.