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Finding the Fourth Proportional to 344,463.36, 475,439.40 and 217,312.80

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Solution

The fourth proportional to 344,463.36, 475,439.40 and 217,312.80 is: 299,942.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,463.36 : 475,439.40 = 217,312.80 : x
  2. Step 2: Convert to fraction form
    344,463.36/475,439.40 = 217,312.80/x
  3. Step 3: Cross multiply
    344,463.36x = 475,439.40 × 217,312.80
  4. Step 4: Simplify right side
    344,463.36x = 103,319,067,244.32
  5. Step 5: Solve for x
    x = 103,319,067,244.32/344,463.36
  6. Step 6: Final answer
    x = 299,942.11

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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.