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Finding the Fourth Proportional to 542,273.81, 748,310.81 and 300,554.21

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Solution

The fourth proportional to 542,273.81, 748,310.81 and 300,554.21 is: 414,749.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,273.81 : 748,310.81 = 300,554.21 : x
  2. Step 2: Convert to fraction form
    542,273.81/748,310.81 = 300,554.21/x
  3. Step 3: Cross multiply
    542,273.81x = 748,310.81 × 300,554.21
  4. Step 4: Simplify right side
    542,273.81x = 224,907,964,702.02
  5. Step 5: Solve for x
    x = 224,907,964,702.02/542,273.81
  6. Step 6: Final answer
    x = 414,749.82

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.