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Finding the Fourth Proportional to 313,672.99, 432,870.33 and 170,433.40

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Solution

The fourth proportional to 313,672.99, 432,870.33 and 170,433.40 is: 235,198.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,672.99 : 432,870.33 = 170,433.40 : x
  2. Step 2: Convert to fraction form
    313,672.99/432,870.33 = 170,433.40/x
  3. Step 3: Cross multiply
    313,672.99x = 432,870.33 × 170,433.40
  4. Step 4: Simplify right side
    313,672.99x = 73,775,562,101.02
  5. Step 5: Solve for x
    x = 73,775,562,101.02/313,672.99
  6. Step 6: Final answer
    x = 235,198.96

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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.