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Finding the Fourth Proportional to 217,500.40, 304,811.60 and 217,500.40

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Solution

The fourth proportional to 217,500.40, 304,811.60 and 217,500.40 is: 304,811.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,500.40 : 304,811.60 = 217,500.40 : x
  2. Step 2: Convert to fraction form
    217,500.40/304,811.60 = 217,500.40/x
  3. Step 3: Cross multiply
    217,500.40x = 304,811.60 × 217,500.40
  4. Step 4: Simplify right side
    217,500.40x = 66,296,644,924.64
  5. Step 5: Solve for x
    x = 66,296,644,924.64/217,500.40
  6. Step 6: Final answer
    x = 304,811.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.