Home / 170,815.40-256,223.10-154,226.60

Finding the Fourth Proportional to 170,815.40, 256,223.10 and 154,226.60

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Solution

The fourth proportional to 170,815.40, 256,223.10 and 154,226.60 is: 231,339.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,815.40 : 256,223.10 = 154,226.60 : x
  2. Step 2: Convert to fraction form
    170,815.40/256,223.10 = 154,226.60/x
  3. Step 3: Cross multiply
    170,815.40x = 256,223.10 × 154,226.60
  4. Step 4: Simplify right side
    170,815.40x = 39,516,417,554.46
  5. Step 5: Solve for x
    x = 39,516,417,554.46/170,815.40
  6. Step 6: Final answer
    x = 231,339.90

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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.