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Finding the Fourth Proportional to 307,702.85, 461,554.28 and 303,555.65

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Solution

The fourth proportional to 307,702.85, 461,554.28 and 303,555.65 is: 455,333.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,702.85 : 461,554.28 = 303,555.65 : x
  2. Step 2: Convert to fraction form
    307,702.85/461,554.28 = 303,555.65/x
  3. Step 3: Cross multiply
    307,702.85x = 461,554.28 × 303,555.65
  4. Step 4: Simplify right side
    307,702.85x = 140,107,407,957.90
  5. Step 5: Solve for x
    x = 140,107,407,957.90/307,702.85
  6. Step 6: Final answer
    x = 455,333.48

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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.