Home / 320,430.30-480,069.45-153,851.10

Finding the Fourth Proportional to 320,430.30, 480,069.45 and 153,851.10

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Solution

The fourth proportional to 320,430.30, 480,069.45 and 153,851.10 is: 230,500.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,430.30 : 480,069.45 = 153,851.10 : x
  2. Step 2: Convert to fraction form
    320,430.30/480,069.45 = 153,851.10/x
  3. Step 3: Cross multiply
    320,430.30x = 480,069.45 × 153,851.10
  4. Step 4: Simplify right side
    320,430.30x = 73,859,212,958.90
  5. Step 5: Solve for x
    x = 73,859,212,958.90/320,430.30
  6. Step 6: Final answer
    x = 230,500.09

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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.