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Finding the Fourth Proportional to 302,017.59, 453,015.90 and 77,379.89

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Solution

The fourth proportional to 302,017.59, 453,015.90 and 77,379.89 is: 116,067.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,017.59 : 453,015.90 = 77,379.89 : x
  2. Step 2: Convert to fraction form
    302,017.59/453,015.90 = 77,379.89/x
  3. Step 3: Cross multiply
    302,017.59x = 453,015.90 × 77,379.89
  4. Step 4: Simplify right side
    302,017.59x = 35,054,320,510.25
  5. Step 5: Solve for x
    x = 35,054,320,510.25/302,017.59
  6. Step 6: Final answer
    x = 116,067.15

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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.