Home / 305,117.43-421,084.23-184,288.11

Finding the Fourth Proportional to 305,117.43, 421,084.23 and 184,288.11

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Solution

The fourth proportional to 305,117.43, 421,084.23 and 184,288.11 is: 254,330.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,117.43 : 421,084.23 = 184,288.11 : x
  2. Step 2: Convert to fraction form
    305,117.43/421,084.23 = 184,288.11/x
  3. Step 3: Cross multiply
    305,117.43x = 421,084.23 × 184,288.11
  4. Step 4: Simplify right side
    305,117.43x = 77,600,816,897.51
  5. Step 5: Solve for x
    x = 77,600,816,897.51/305,117.43
  6. Step 6: Final answer
    x = 254,330.99

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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.