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Finding the Fourth Proportional to 261,355.41, 358,322.22 and 256,631.49

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Solution

The fourth proportional to 261,355.41, 358,322.22 and 256,631.49 is: 351,845.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,355.41 : 358,322.22 = 256,631.49 : x
  2. Step 2: Convert to fraction form
    261,355.41/358,322.22 = 256,631.49/x
  3. Step 3: Cross multiply
    261,355.41x = 358,322.22 × 256,631.49
  4. Step 4: Simplify right side
    261,355.41x = 91,956,765,218.71
  5. Step 5: Solve for x
    x = 91,956,765,218.71/261,355.41
  6. Step 6: Final answer
    x = 351,845.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.