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Finding the Fourth Proportional to 369,437.52, 509,813.58 and 208,291.17

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Solution

The fourth proportional to 369,437.52, 509,813.58 and 208,291.17 is: 287,436.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,437.52 : 509,813.58 = 208,291.17 : x
  2. Step 2: Convert to fraction form
    369,437.52/509,813.58 = 208,291.17/x
  3. Step 3: Cross multiply
    369,437.52x = 509,813.58 × 208,291.17
  4. Step 4: Simplify right side
    369,437.52x = 106,189,667,060.09
  5. Step 5: Solve for x
    x = 106,189,667,060.09/369,437.52
  6. Step 6: Final answer
    x = 287,436.07

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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.