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Finding the Fourth Proportional to 290,290.15, 435,462.71 and 112,810.85

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Solution

The fourth proportional to 290,290.15, 435,462.71 and 112,810.85 is: 169,226.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,290.15 : 435,462.71 = 112,810.85 : x
  2. Step 2: Convert to fraction form
    290,290.15/435,462.71 = 112,810.85/x
  3. Step 3: Cross multiply
    290,290.15x = 435,462.71 × 112,810.85
  4. Step 4: Simplify right side
    290,290.15x = 49,124,915,717.04
  5. Step 5: Solve for x
    x = 49,124,915,717.04/290,290.15
  6. Step 6: Final answer
    x = 169,226.95

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1.5x scale

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.