Home / 401,502.05-554,088.33-220,221.62

Finding the Fourth Proportional to 401,502.05, 554,088.33 and 220,221.62

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Solution

The fourth proportional to 401,502.05, 554,088.33 and 220,221.62 is: 303,914.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,502.05 : 554,088.33 = 220,221.62 : x
  2. Step 2: Convert to fraction form
    401,502.05/554,088.33 = 220,221.62/x
  3. Step 3: Cross multiply
    401,502.05x = 554,088.33 × 220,221.62
  4. Step 4: Simplify right side
    401,502.05x = 122,022,226,885.25
  5. Step 5: Solve for x
    x = 122,022,226,885.25/401,502.05
  6. Step 6: Final answer
    x = 303,914.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.