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Finding the Fourth Proportional to 290,620.36, 435,918.48 and 101,124.10

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Solution

The fourth proportional to 290,620.36, 435,918.48 and 101,124.10 is: 151,681.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,620.36 : 435,918.48 = 101,124.10 : x
  2. Step 2: Convert to fraction form
    290,620.36/435,918.48 = 101,124.10/x
  3. Step 3: Cross multiply
    290,620.36x = 435,918.48 × 101,124.10
  4. Step 4: Simplify right side
    290,620.36x = 44,081,863,963.37
  5. Step 5: Solve for x
    x = 44,081,863,963.37/290,620.36
  6. Step 6: Final answer
    x = 151,681.95

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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.