Home / 302,811.17-454,218.47-78,156.24

Finding the Fourth Proportional to 302,811.17, 454,218.47 and 78,156.24

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Solution

The fourth proportional to 302,811.17, 454,218.47 and 78,156.24 is: 117,234.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,811.17 : 454,218.47 = 78,156.24 : x
  2. Step 2: Convert to fraction form
    302,811.17/454,218.47 = 78,156.24/x
  3. Step 3: Cross multiply
    302,811.17x = 454,218.47 × 78,156.24
  4. Step 4: Simplify right side
    302,811.17x = 35,500,008,126.14
  5. Step 5: Solve for x
    x = 35,500,008,126.14/302,811.17
  6. Step 6: Final answer
    x = 117,234.81

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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.