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Finding the Fourth Proportional to 275,645.40, 413,468.10 and 240,653.40

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Solution

The fourth proportional to 275,645.40, 413,468.10 and 240,653.40 is: 360,980.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,645.40 : 413,468.10 = 240,653.40 : x
  2. Step 2: Convert to fraction form
    275,645.40/413,468.10 = 240,653.40/x
  3. Step 3: Cross multiply
    275,645.40x = 413,468.10 × 240,653.40
  4. Step 4: Simplify right side
    275,645.40x = 99,502,504,056.54
  5. Step 5: Solve for x
    x = 99,502,504,056.54/275,645.40
  6. Step 6: Final answer
    x = 360,980.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.