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Finding the Fourth Proportional to 303,612.86, 455,576.90 and 123,830.18

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Solution

The fourth proportional to 303,612.86, 455,576.90 and 123,830.18 is: 185,809.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,612.86 : 455,576.90 = 123,830.18 : x
  2. Step 2: Convert to fraction form
    303,612.86/455,576.90 = 123,830.18/x
  3. Step 3: Cross multiply
    303,612.86x = 455,576.90 × 123,830.18
  4. Step 4: Simplify right side
    303,612.86x = 56,414,166,633.81
  5. Step 5: Solve for x
    x = 56,414,166,633.81/303,612.86
  6. Step 6: Final answer
    x = 185,809.55

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1.5x scale

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.