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Finding the Fourth Proportional to 304,968.14, 420,807.04 and 191,710.70

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Solution

The fourth proportional to 304,968.14, 420,807.04 and 191,710.70 is: 264,529.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,968.14 : 420,807.04 = 191,710.70 : x
  2. Step 2: Convert to fraction form
    304,968.14/420,807.04 = 191,710.70/x
  3. Step 3: Cross multiply
    304,968.14x = 420,807.04 × 191,710.70
  4. Step 4: Simplify right side
    304,968.14x = 80,673,209,620.02
  5. Step 5: Solve for x
    x = 80,673,209,620.02/304,968.14
  6. Step 6: Final answer
    x = 264,529.96

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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.