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Finding the Fourth Proportional to 302,488.90, 453,745.86 and 89,256.81

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Solution

The fourth proportional to 302,488.90, 453,745.86 and 89,256.81 is: 133,888.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,488.90 : 453,745.86 = 89,256.81 : x
  2. Step 2: Convert to fraction form
    302,488.90/453,745.86 = 89,256.81/x
  3. Step 3: Cross multiply
    302,488.90x = 453,745.86 × 89,256.81
  4. Step 4: Simplify right side
    302,488.90x = 40,499,905,745.58
  5. Step 5: Solve for x
    x = 40,499,905,745.58/302,488.90
  6. Step 6: Final answer
    x = 133,888.90

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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.