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Finding the Fourth Proportional to 369,240.87, 509,555.58 and 208,065.03

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Solution

The fourth proportional to 369,240.87, 509,555.58 and 208,065.03 is: 287,131.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,240.87 : 509,555.58 = 208,065.03 : x
  2. Step 2: Convert to fraction form
    369,240.87/509,555.58 = 208,065.03/x
  3. Step 3: Cross multiply
    369,240.87x = 509,555.58 × 208,065.03
  4. Step 4: Simplify right side
    369,240.87x = 106,020,697,039.37
  5. Step 5: Solve for x
    x = 106,020,697,039.37/369,240.87
  6. Step 6: Final answer
    x = 287,131.53

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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.