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Finding the Fourth Proportional to 215,898.40, 301,864.10 and 215,898.40

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Solution

The fourth proportional to 215,898.40, 301,864.10 and 215,898.40 is: 301,864.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,898.40 : 301,864.10 = 215,898.40 : x
  2. Step 2: Convert to fraction form
    215,898.40/301,864.10 = 215,898.40/x
  3. Step 3: Cross multiply
    215,898.40x = 301,864.10 × 215,898.40
  4. Step 4: Simplify right side
    215,898.40x = 65,171,976,207.44
  5. Step 5: Solve for x
    x = 65,171,976,207.44/215,898.40
  6. Step 6: Final answer
    x = 301,864.10

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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.