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Finding the Fourth Proportional to 361,603.70, 542,405.55 and 302,992.10

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Solution

The fourth proportional to 361,603.70, 542,405.55 and 302,992.10 is: 454,488.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,603.70 : 542,405.55 = 302,992.10 : x
  2. Step 2: Convert to fraction form
    361,603.70/542,405.55 = 302,992.10/x
  3. Step 3: Cross multiply
    361,603.70x = 542,405.55 × 302,992.10
  4. Step 4: Simplify right side
    361,603.70x = 164,344,596,646.16
  5. Step 5: Solve for x
    x = 164,344,596,646.16/361,603.70
  6. Step 6: Final answer
    x = 454,488.15

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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.