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Finding the Fourth Proportional to 339,768.48, 507,480.06 and 307,699.80

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Solution

The fourth proportional to 339,768.48, 507,480.06 and 307,699.80 is: 459,582.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,768.48 : 507,480.06 = 307,699.80 : x
  2. Step 2: Convert to fraction form
    339,768.48/507,480.06 = 307,699.80/x
  3. Step 3: Cross multiply
    339,768.48x = 507,480.06 × 307,699.80
  4. Step 4: Simplify right side
    339,768.48x = 156,151,512,965.99
  5. Step 5: Solve for x
    x = 156,151,512,965.99/339,768.48
  6. Step 6: Final answer
    x = 459,582.10

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.