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Finding the Fourth Proportional to 170,830.74, 256,160.09 and 56,938.21

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Solution

The fourth proportional to 170,830.74, 256,160.09 and 56,938.21 is: 85,378.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,830.74 : 256,160.09 = 56,938.21 : x
  2. Step 2: Convert to fraction form
    170,830.74/256,160.09 = 56,938.21/x
  3. Step 3: Cross multiply
    170,830.74x = 256,160.09 × 56,938.21
  4. Step 4: Simplify right side
    170,830.74x = 14,585,296,179.71
  5. Step 5: Solve for x
    x = 14,585,296,179.71/170,830.74
  6. Step 6: Final answer
    x = 85,378.64

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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.