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Finding the Fourth Proportional to 300,249.14, 413,502.45 and 249,489.14

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Solution

The fourth proportional to 300,249.14, 413,502.45 and 249,489.14 is: 343,595.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,249.14 : 413,502.45 = 249,489.14 : x
  2. Step 2: Convert to fraction form
    300,249.14/413,502.45 = 249,489.14/x
  3. Step 3: Cross multiply
    300,249.14x = 413,502.45 × 249,489.14
  4. Step 4: Simplify right side
    300,249.14x = 103,164,370,638.39
  5. Step 5: Solve for x
    x = 103,164,370,638.39/300,249.14
  6. Step 6: Final answer
    x = 343,595.89

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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.