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Finding the Fourth Proportional to 405,008.04, 558,907.58 and 223,732.62

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Solution

The fourth proportional to 405,008.04, 558,907.58 and 223,732.62 is: 308,749.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,008.04 : 558,907.58 = 223,732.62 : x
  2. Step 2: Convert to fraction form
    405,008.04/558,907.58 = 223,732.62/x
  3. Step 3: Cross multiply
    405,008.04x = 558,907.58 × 223,732.62
  4. Step 4: Simplify right side
    405,008.04x = 125,045,857,211.26
  5. Step 5: Solve for x
    x = 125,045,857,211.26/405,008.04
  6. Step 6: Final answer
    x = 308,749.07

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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.