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Finding the Fourth Proportional to 404,528.58, 558,285.21 and 223,279.74

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Solution

The fourth proportional to 404,528.58, 558,285.21 and 223,279.74 is: 308,145.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,528.58 : 558,285.21 = 223,279.74 : x
  2. Step 2: Convert to fraction form
    404,528.58/558,285.21 = 223,279.74/x
  3. Step 3: Cross multiply
    404,528.58x = 558,285.21 × 223,279.74
  4. Step 4: Simplify right side
    404,528.58x = 124,653,776,534.65
  5. Step 5: Solve for x
    x = 124,653,776,534.65/404,528.58
  6. Step 6: Final answer
    x = 308,145.78

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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.