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Finding the Fourth Proportional to 313,658.66, 432,849.52 and 170,418.87

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Solution

The fourth proportional to 313,658.66, 432,849.52 and 170,418.87 is: 235,178.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,658.66 : 432,849.52 = 170,418.87 : x
  2. Step 2: Convert to fraction form
    313,658.66/432,849.52 = 170,418.87/x
  3. Step 3: Cross multiply
    313,658.66x = 432,849.52 × 170,418.87
  4. Step 4: Simplify right side
    313,658.66x = 73,765,726,291.47
  5. Step 5: Solve for x
    x = 73,765,726,291.47/313,658.66
  6. Step 6: Final answer
    x = 235,178.35

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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.