Home / 305,423.02-421,475.88-169,456.42

Finding the Fourth Proportional to 305,423.02, 421,475.88 and 169,456.42

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Solution

The fourth proportional to 305,423.02, 421,475.88 and 169,456.42 is: 233,845.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,423.02 : 421,475.88 = 169,456.42 : x
  2. Step 2: Convert to fraction form
    305,423.02/421,475.88 = 169,456.42/x
  3. Step 3: Cross multiply
    305,423.02x = 421,475.88 × 169,456.42
  4. Step 4: Simplify right side
    305,423.02x = 71,421,793,741.15
  5. Step 5: Solve for x
    x = 71,421,793,741.15/305,423.02
  6. Step 6: Final answer
    x = 233,845.48

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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.