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Finding the Fourth Proportional to 369,679.36, 510,133.76 and 210,693.12

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Solution

The fourth proportional to 369,679.36, 510,133.76 and 210,693.12 is: 290,742.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,679.36 : 510,133.76 = 210,693.12 : x
  2. Step 2: Convert to fraction form
    369,679.36/510,133.76 = 210,693.12/x
  3. Step 3: Cross multiply
    369,679.36x = 510,133.76 × 210,693.12
  4. Step 4: Simplify right side
    369,679.36x = 107,481,673,511.73
  5. Step 5: Solve for x
    x = 107,481,673,511.73/369,679.36
  6. Step 6: Final answer
    x = 290,742.97

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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.