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Finding the Fourth Proportional to 405,125.55, 559,079.01 and 223,841.48

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Solution

The fourth proportional to 405,125.55, 559,079.01 and 223,841.48 is: 308,904.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,125.55 : 559,079.01 = 223,841.48 : x
  2. Step 2: Convert to fraction form
    405,125.55/559,079.01 = 223,841.48/x
  3. Step 3: Cross multiply
    405,125.55x = 559,079.01 × 223,841.48
  4. Step 4: Simplify right side
    405,125.55x = 125,145,070,239.94
  5. Step 5: Solve for x
    x = 125,145,070,239.94/405,125.55
  6. Step 6: Final answer
    x = 308,904.41

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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.