Home / 205,749.24-308,621.64-156,134.04

Finding the Fourth Proportional to 205,749.24, 308,621.64 and 156,134.04

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Solution

The fourth proportional to 205,749.24, 308,621.64 and 156,134.04 is: 234,199.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,749.24 : 308,621.64 = 156,134.04 : x
  2. Step 2: Convert to fraction form
    205,749.24/308,621.64 = 156,134.04/x
  3. Step 3: Cross multiply
    205,749.24x = 308,621.64 × 156,134.04
  4. Step 4: Simplify right side
    205,749.24x = 48,186,343,484.63
  5. Step 5: Solve for x
    x = 48,186,343,484.63/205,749.24
  6. Step 6: Final answer
    x = 234,199.38

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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.