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Finding the Fourth Proportional to 369,684.36, 510,140.66 and 210,698.12

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Solution

The fourth proportional to 369,684.36, 510,140.66 and 210,698.12 is: 290,749.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,684.36 : 510,140.66 = 210,698.12 : x
  2. Step 2: Convert to fraction form
    369,684.36/510,140.66 = 210,698.12/x
  3. Step 3: Cross multiply
    369,684.36x = 510,140.66 × 210,698.12
  4. Step 4: Simplify right side
    369,684.36x = 107,485,677,997.56
  5. Step 5: Solve for x
    x = 107,485,677,997.56/369,684.36
  6. Step 6: Final answer
    x = 290,749.87

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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.