Home / 303,986.40-455,980.64-93,623.20

Finding the Fourth Proportional to 303,986.40, 455,980.64 and 93,623.20

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Solution

The fourth proportional to 303,986.40, 455,980.64 and 93,623.20 is: 140,435.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,986.40 : 455,980.64 = 93,623.20 : x
  2. Step 2: Convert to fraction form
    303,986.40/455,980.64 = 93,623.20/x
  3. Step 3: Cross multiply
    303,986.40x = 455,980.64 × 93,623.20
  4. Step 4: Simplify right side
    303,986.40x = 42,690,366,654.85
  5. Step 5: Solve for x
    x = 42,690,366,654.85/303,986.40
  6. Step 6: Final answer
    x = 140,435.12

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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.