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Finding the Fourth Proportional to 368,908.88, 509,088.84 and 207,764.24

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Solution

The fourth proportional to 368,908.88, 509,088.84 and 207,764.24 is: 286,711.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,908.88 : 509,088.84 = 207,764.24 : x
  2. Step 2: Convert to fraction form
    368,908.88/509,088.84 = 207,764.24/x
  3. Step 3: Cross multiply
    368,908.88x = 509,088.84 × 207,764.24
  4. Step 4: Simplify right side
    368,908.88x = 105,770,455,935.08
  5. Step 5: Solve for x
    x = 105,770,455,935.08/368,908.88
  6. Step 6: Final answer
    x = 286,711.60

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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.