Home / 305,307.07-421,337.12-169,331.86

Finding the Fourth Proportional to 305,307.07, 421,337.12 and 169,331.86

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Solution

The fourth proportional to 305,307.07, 421,337.12 and 169,331.86 is: 233,685.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,307.07 : 421,337.12 = 169,331.86 : x
  2. Step 2: Convert to fraction form
    305,307.07/421,337.12 = 169,331.86/x
  3. Step 3: Cross multiply
    305,307.07x = 421,337.12 × 169,331.86
  4. Step 4: Simplify right side
    305,307.07x = 71,345,796,316.64
  5. Step 5: Solve for x
    x = 71,345,796,316.64/305,307.07
  6. Step 6: Final answer
    x = 233,685.37

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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.