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Finding the Fourth Proportional to 313,394.85, 432,483.66 and 170,154.84

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Solution

The fourth proportional to 313,394.85, 432,483.66 and 170,154.84 is: 234,813.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,394.85 : 432,483.66 = 170,154.84 : x
  2. Step 2: Convert to fraction form
    313,394.85/432,483.66 = 170,154.84/x
  3. Step 3: Cross multiply
    313,394.85x = 432,483.66 × 170,154.84
  4. Step 4: Simplify right side
    313,394.85x = 73,589,187,969.91
  5. Step 5: Solve for x
    x = 73,589,187,969.91/313,394.85
  6. Step 6: Final answer
    x = 234,813.01

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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.