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Finding the Fourth Proportional to 293,503.20, 439,736.40 and 260,325.60

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Solution

The fourth proportional to 293,503.20, 439,736.40 and 260,325.60 is: 390,028.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,503.20 : 439,736.40 = 260,325.60 : x
  2. Step 2: Convert to fraction form
    293,503.20/439,736.40 = 260,325.60/x
  3. Step 3: Cross multiply
    293,503.20x = 439,736.40 × 260,325.60
  4. Step 4: Simplify right side
    293,503.20x = 114,474,642,171.84
  5. Step 5: Solve for x
    x = 114,474,642,171.84/293,503.20
  6. Step 6: Final answer
    x = 390,028.60

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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.