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Finding the Fourth Proportional to 290,544.84, 435,839.94 and 113,038.20

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Solution

The fourth proportional to 290,544.84, 435,839.94 and 113,038.20 is: 169,566.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,544.84 : 435,839.94 = 113,038.20 : x
  2. Step 2: Convert to fraction form
    290,544.84/435,839.94 = 113,038.20/x
  3. Step 3: Cross multiply
    290,544.84x = 435,839.94 × 113,038.20
  4. Step 4: Simplify right side
    290,544.84x = 49,266,562,305.71
  5. Step 5: Solve for x
    x = 49,266,562,305.71/290,544.84
  6. Step 6: Final answer
    x = 169,566.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.