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Finding the Fourth Proportional to 401,813.46, 554,500.90 and 220,528.36

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Solution

The fourth proportional to 401,813.46, 554,500.90 and 220,528.36 is: 304,328.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,813.46 : 554,500.90 = 220,528.36 : x
  2. Step 2: Convert to fraction form
    401,813.46/554,500.90 = 220,528.36/x
  3. Step 3: Cross multiply
    401,813.46x = 554,500.90 × 220,528.36
  4. Step 4: Simplify right side
    401,813.46x = 122,283,174,095.52
  5. Step 5: Solve for x
    x = 122,283,174,095.52/401,813.46
  6. Step 6: Final answer
    x = 304,328.22

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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.