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Finding the Fourth Proportional to 371,653.05, 554,671.03 and 335,780.85

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Solution

The fourth proportional to 371,653.05, 554,671.03 and 335,780.85 is: 501,133.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,653.05 : 554,671.03 = 335,780.85 : x
  2. Step 2: Convert to fraction form
    371,653.05/554,671.03 = 335,780.85/x
  3. Step 3: Cross multiply
    371,653.05x = 554,671.03 × 335,780.85
  4. Step 4: Simplify right side
    371,653.05x = 186,247,909,084.32
  5. Step 5: Solve for x
    x = 186,247,909,084.32/371,653.05
  6. Step 6: Final answer
    x = 501,133.81

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.