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Finding the Fourth Proportional to 293,873.60, 440,421.60 and 260,436.80

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Solution

The fourth proportional to 293,873.60, 440,421.60 and 260,436.80 is: 390,310.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,873.60 : 440,421.60 = 260,436.80 : x
  2. Step 2: Convert to fraction form
    293,873.60/440,421.60 = 260,436.80/x
  3. Step 3: Cross multiply
    293,873.60x = 440,421.60 × 260,436.80
  4. Step 4: Simplify right side
    293,873.60x = 114,701,992,154.88
  5. Step 5: Solve for x
    x = 114,701,992,154.88/293,873.60
  6. Step 6: Final answer
    x = 390,310.64

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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.