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Finding the Fourth Proportional to 302,465.53, 453,663.74 and 80,866.81

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Solution

The fourth proportional to 302,465.53, 453,663.74 and 80,866.81 is: 121,290.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,465.53 : 453,663.74 = 80,866.81 : x
  2. Step 2: Convert to fraction form
    302,465.53/453,663.74 = 80,866.81/x
  3. Step 3: Cross multiply
    302,465.53x = 453,663.74 × 80,866.81
  4. Step 4: Simplify right side
    302,465.53x = 36,686,339,062.14
  5. Step 5: Solve for x
    x = 36,686,339,062.14/302,465.53
  6. Step 6: Final answer
    x = 121,290.98

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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.