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Finding the Fourth Proportional to 303,368.40, 455,927.40 and 264,877.20

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Solution

The fourth proportional to 303,368.40, 455,927.40 and 264,877.20 is: 398,079.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,368.40 : 455,927.40 = 264,877.20 : x
  2. Step 2: Convert to fraction form
    303,368.40/455,927.40 = 264,877.20/x
  3. Step 3: Cross multiply
    303,368.40x = 455,927.40 × 264,877.20
  4. Step 4: Simplify right side
    303,368.40x = 120,764,773,115.28
  5. Step 5: Solve for x
    x = 120,764,773,115.28/303,368.40
  6. Step 6: Final answer
    x = 398,079.61

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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.