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Finding the Fourth Proportional to 305,498.88, 421,569.41 and 184,568.72

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Solution

The fourth proportional to 305,498.88, 421,569.41 and 184,568.72 is: 254,693.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,498.88 : 421,569.41 = 184,568.72 : x
  2. Step 2: Convert to fraction form
    305,498.88/421,569.41 = 184,568.72/x
  3. Step 3: Cross multiply
    305,498.88x = 421,569.41 × 184,568.72
  4. Step 4: Simplify right side
    305,498.88x = 77,808,523,364.16
  5. Step 5: Solve for x
    x = 77,808,523,364.16/305,498.88
  6. Step 6: Final answer
    x = 254,693.32

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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.