Home / 213,643.35-320,465.03-133,927.20

Finding the Fourth Proportional to 213,643.35, 320,465.03 and 133,927.20

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Solution

The fourth proportional to 213,643.35, 320,465.03 and 133,927.20 is: 200,890.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,643.35 : 320,465.03 = 133,927.20 : x
  2. Step 2: Convert to fraction form
    213,643.35/320,465.03 = 133,927.20/x
  3. Step 3: Cross multiply
    213,643.35x = 320,465.03 × 133,927.20
  4. Step 4: Simplify right side
    213,643.35x = 42,918,983,496.18
  5. Step 5: Solve for x
    x = 42,918,983,496.18/213,643.35
  6. Step 6: Final answer
    x = 200,890.80

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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.