Home / 320,700.04-480,972.30-133,609.48

Finding the Fourth Proportional to 320,700.04, 480,972.30 and 133,609.48

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Solution

The fourth proportional to 320,700.04, 480,972.30 and 133,609.48 is: 200,381.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,700.04 : 480,972.30 = 133,609.48 : x
  2. Step 2: Convert to fraction form
    320,700.04/480,972.30 = 133,609.48/x
  3. Step 3: Cross multiply
    320,700.04x = 480,972.30 × 133,609.48
  4. Step 4: Simplify right side
    320,700.04x = 64,262,458,897.40
  5. Step 5: Solve for x
    x = 64,262,458,897.40/320,700.04
  6. Step 6: Final answer
    x = 200,381.82

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1.5x scale

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.