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Finding the Fourth Proportional to 368,832.23, 509,036.99 and 207,718.78

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Solution

The fourth proportional to 368,832.23, 509,036.99 and 207,718.78 is: 286,679.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,832.23 : 509,036.99 = 207,718.78 : x
  2. Step 2: Convert to fraction form
    368,832.23/509,036.99 = 207,718.78/x
  3. Step 3: Cross multiply
    368,832.23x = 509,036.99 × 207,718.78
  4. Step 4: Simplify right side
    368,832.23x = 105,736,540,226.49
  5. Step 5: Solve for x
    x = 105,736,540,226.49/368,832.23
  6. Step 6: Final answer
    x = 286,679.23

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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.