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Finding the Fourth Proportional to 170,237.10, 255,392.10 and 51,920.40

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Solution

The fourth proportional to 170,237.10, 255,392.10 and 51,920.40 is: 77,891.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,237.10 : 255,392.10 = 51,920.40 : x
  2. Step 2: Convert to fraction form
    170,237.10/255,392.10 = 51,920.40/x
  3. Step 3: Cross multiply
    170,237.10x = 255,392.10 × 51,920.40
  4. Step 4: Simplify right side
    170,237.10x = 13,260,059,988.84
  5. Step 5: Solve for x
    x = 13,260,059,988.84/170,237.10
  6. Step 6: Final answer
    x = 77,891.72

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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.