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Finding the Fourth Proportional to 302,603.40, 453,480.26 and 239,144.54

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Solution

The fourth proportional to 302,603.40, 453,480.26 and 239,144.54 is: 358,381.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,603.40 : 453,480.26 = 239,144.54 : x
  2. Step 2: Convert to fraction form
    302,603.40/453,480.26 = 239,144.54/x
  3. Step 3: Cross multiply
    302,603.40x = 453,480.26 × 239,144.54
  4. Step 4: Simplify right side
    302,603.40x = 108,447,328,176.78
  5. Step 5: Solve for x
    x = 108,447,328,176.78/302,603.40
  6. Step 6: Final answer
    x = 358,381.06

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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.