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Finding the Fourth Proportional to 290,468.80, 435,616.80 and 112,873.60

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Solution

The fourth proportional to 290,468.80, 435,616.80 and 112,873.60 is: 169,276.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,468.80 : 435,616.80 = 112,873.60 : x
  2. Step 2: Convert to fraction form
    290,468.80/435,616.80 = 112,873.60/x
  3. Step 3: Cross multiply
    290,468.80x = 435,616.80 × 112,873.60
  4. Step 4: Simplify right side
    290,468.80x = 49,169,636,436.48
  5. Step 5: Solve for x
    x = 49,169,636,436.48/290,468.80
  6. Step 6: Final answer
    x = 169,276.83

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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.