Home / 384,345.42-530,394.68-214,579.56

Finding the Fourth Proportional to 384,345.42, 530,394.68 and 214,579.56

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Solution

The fourth proportional to 384,345.42, 530,394.68 and 214,579.56 is: 296,118.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,345.42 : 530,394.68 = 214,579.56 : x
  2. Step 2: Convert to fraction form
    384,345.42/530,394.68 = 214,579.56/x
  3. Step 3: Cross multiply
    384,345.42x = 530,394.68 × 214,579.56
  4. Step 4: Simplify right side
    384,345.42x = 113,811,857,060.74
  5. Step 5: Solve for x
    x = 113,811,857,060.74/384,345.42
  6. Step 6: Final answer
    x = 296,118.68

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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.