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Finding the Fourth Proportional to 401,496.68, 554,065.80 and 220,216.34

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Solution

The fourth proportional to 401,496.68, 554,065.80 and 220,216.34 is: 303,898.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,496.68 : 554,065.80 = 220,216.34 : x
  2. Step 2: Convert to fraction form
    401,496.68/554,065.80 = 220,216.34/x
  3. Step 3: Cross multiply
    401,496.68x = 554,065.80 × 220,216.34
  4. Step 4: Simplify right side
    401,496.68x = 122,014,342,595.17
  5. Step 5: Solve for x
    x = 122,014,342,595.17/401,496.68
  6. Step 6: Final answer
    x = 303,898.76

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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.