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Finding the Fourth Proportional to 293,985, 440,834.84 and 172,438.74

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Solution

The fourth proportional to 293,985, 440,834.84 and 172,438.74 is: 258,574.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,985 : 440,834.84 = 172,438.74 : x
  2. Step 2: Convert to fraction form
    293,985/440,834.84 = 172,438.74/x
  3. Step 3: Cross multiply
    293,985x = 440,834.84 × 172,438.74
  4. Step 4: Simplify right side
    293,985x = 76,017,004,357.70
  5. Step 5: Solve for x
    x = 76,017,004,357.70/293,985
  6. Step 6: Final answer
    x = 258,574.43

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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.