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Finding the Fourth Proportional to 304,652.64, 420,397.56 and 190,059.30

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Solution

The fourth proportional to 304,652.64, 420,397.56 and 190,059.30 is: 262,267.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,652.64 : 420,397.56 = 190,059.30 : x
  2. Step 2: Convert to fraction form
    304,652.64/420,397.56 = 190,059.30/x
  3. Step 3: Cross multiply
    304,652.64x = 420,397.56 × 190,059.30
  4. Step 4: Simplify right side
    304,652.64x = 79,900,465,975.31
  5. Step 5: Solve for x
    x = 79,900,465,975.31/304,652.64
  6. Step 6: Final answer
    x = 262,267.43

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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.