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Finding the Fourth Proportional to 343,072.98, 472,849.63 and 228,146.21

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Solution

The fourth proportional to 343,072.98, 472,849.63 and 228,146.21 is: 314,448.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,072.98 : 472,849.63 = 228,146.21 : x
  2. Step 2: Convert to fraction form
    343,072.98/472,849.63 = 228,146.21/x
  3. Step 3: Cross multiply
    343,072.98x = 472,849.63 × 228,146.21
  4. Step 4: Simplify right side
    343,072.98x = 107,878,848,049.79
  5. Step 5: Solve for x
    x = 107,878,848,049.79/343,072.98
  6. Step 6: Final answer
    x = 314,448.69

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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.