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Finding the Fourth Proportional to 303,766.30, 455,102.70 and 240,999.40

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Solution

The fourth proportional to 303,766.30, 455,102.70 and 240,999.40 is: 361,065.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,766.30 : 455,102.70 = 240,999.40 : x
  2. Step 2: Convert to fraction form
    303,766.30/455,102.70 = 240,999.40/x
  3. Step 3: Cross multiply
    303,766.30x = 455,102.70 × 240,999.40
  4. Step 4: Simplify right side
    303,766.30x = 109,679,477,638.38
  5. Step 5: Solve for x
    x = 109,679,477,638.38/303,766.30
  6. Step 6: Final answer
    x = 361,065.32

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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.