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Finding the Fourth Proportional to 309,620.40, 464,430.60 and 183,649.20

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Solution

The fourth proportional to 309,620.40, 464,430.60 and 183,649.20 is: 275,473.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,620.40 : 464,430.60 = 183,649.20 : x
  2. Step 2: Convert to fraction form
    309,620.40/464,430.60 = 183,649.20/x
  3. Step 3: Cross multiply
    309,620.40x = 464,430.60 × 183,649.20
  4. Step 4: Simplify right side
    309,620.40x = 85,292,308,145.52
  5. Step 5: Solve for x
    x = 85,292,308,145.52/309,620.40
  6. Step 6: Final answer
    x = 275,473.80

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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.