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Finding the Fourth Proportional to 313,473.60, 432,726 and 211,637.01

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Solution

The fourth proportional to 313,473.60, 432,726 and 211,637.01 is: 292,148.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,473.60 : 432,726 = 211,637.01 : x
  2. Step 2: Convert to fraction form
    313,473.60/432,726 = 211,637.01/x
  3. Step 3: Cross multiply
    313,473.60x = 432,726 × 211,637.01
  4. Step 4: Simplify right side
    313,473.60x = 91,580,836,789.26
  5. Step 5: Solve for x
    x = 91,580,836,789.26/313,473.60
  6. Step 6: Final answer
    x = 292,148.48

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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.