Home / 262,129.30-393,485.55-162,402.10

Finding the Fourth Proportional to 262,129.30, 393,485.55 and 162,402.10

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Solution

The fourth proportional to 262,129.30, 393,485.55 and 162,402.10 is: 243,783.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,129.30 : 393,485.55 = 162,402.10 : x
  2. Step 2: Convert to fraction form
    262,129.30/393,485.55 = 162,402.10/x
  3. Step 3: Cross multiply
    262,129.30x = 393,485.55 × 162,402.10
  4. Step 4: Simplify right side
    262,129.30x = 63,902,879,639.66
  5. Step 5: Solve for x
    x = 63,902,879,639.66/262,129.30
  6. Step 6: Final answer
    x = 243,783.81

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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.