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Finding the Fourth Proportional to 170,708.32, 256,117.28 and 70,916.32

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Solution

The fourth proportional to 170,708.32, 256,117.28 and 70,916.32 is: 106,397.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,708.32 : 256,117.28 = 70,916.32 : x
  2. Step 2: Convert to fraction form
    170,708.32/256,117.28 = 70,916.32/x
  3. Step 3: Cross multiply
    170,708.32x = 256,117.28 × 70,916.32
  4. Step 4: Simplify right side
    170,708.32x = 18,162,894,986.01
  5. Step 5: Solve for x
    x = 18,162,894,986.01/170,708.32
  6. Step 6: Final answer
    x = 106,397.25

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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.