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Finding the Fourth Proportional to 304,840.53, 420,885.32 and 190,293.57

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Solution

The fourth proportional to 304,840.53, 420,885.32 and 190,293.57 is: 262,733.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,840.53 : 420,885.32 = 190,293.57 : x
  2. Step 2: Convert to fraction form
    304,840.53/420,885.32 = 190,293.57/x
  3. Step 3: Cross multiply
    304,840.53x = 420,885.32 × 190,293.57
  4. Step 4: Simplify right side
    304,840.53x = 80,091,769,151.92
  5. Step 5: Solve for x
    x = 80,091,769,151.92/304,840.53
  6. Step 6: Final answer
    x = 262,733.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.