Home / 320,126.30-480,048-170,331.08

Finding the Fourth Proportional to 320,126.30, 480,048 and 170,331.08

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Solution

The fourth proportional to 320,126.30, 480,048 and 170,331.08 is: 255,421.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,126.30 : 480,048 = 170,331.08 : x
  2. Step 2: Convert to fraction form
    320,126.30/480,048 = 170,331.08/x
  3. Step 3: Cross multiply
    320,126.30x = 480,048 × 170,331.08
  4. Step 4: Simplify right side
    320,126.30x = 81,767,094,291.84
  5. Step 5: Solve for x
    x = 81,767,094,291.84/320,126.30
  6. Step 6: Final answer
    x = 255,421.36

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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.