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Finding the Fourth Proportional to 369,852.36, 510,269.46 and 208,687.56

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Solution

The fourth proportional to 369,852.36, 510,269.46 and 208,687.56 is: 287,917.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,852.36 : 510,269.46 = 208,687.56 : x
  2. Step 2: Convert to fraction form
    369,852.36/510,269.46 = 208,687.56/x
  3. Step 3: Cross multiply
    369,852.36x = 510,269.46 × 208,687.56
  4. Step 4: Simplify right side
    369,852.36x = 106,486,888,549.92
  5. Step 5: Solve for x
    x = 106,486,888,549.92/369,852.36
  6. Step 6: Final answer
    x = 287,917.29

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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.