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Finding the Fourth Proportional to 290,751.84, 435,985.61 and 119,941.74

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Solution

The fourth proportional to 290,751.84, 435,985.61 and 119,941.74 is: 179,853.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,751.84 : 435,985.61 = 119,941.74 : x
  2. Step 2: Convert to fraction form
    290,751.84/435,985.61 = 119,941.74/x
  3. Step 3: Cross multiply
    290,751.84x = 435,985.61 × 119,941.74
  4. Step 4: Simplify right side
    290,751.84x = 52,292,872,078.65
  5. Step 5: Solve for x
    x = 52,292,872,078.65/290,751.84
  6. Step 6: Final answer
    x = 179,853.97

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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.