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Finding the Fourth Proportional to 170,433.40, 255,679.80 and 70,538.80

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Solution

The fourth proportional to 170,433.40, 255,679.80 and 70,538.80 is: 105,820.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,433.40 : 255,679.80 = 70,538.80 : x
  2. Step 2: Convert to fraction form
    170,433.40/255,679.80 = 70,538.80/x
  3. Step 3: Cross multiply
    170,433.40x = 255,679.80 × 70,538.80
  4. Step 4: Simplify right side
    170,433.40x = 18,035,346,276.24
  5. Step 5: Solve for x
    x = 18,035,346,276.24/170,433.40
  6. Step 6: Final answer
    x = 105,820.49

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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.