Home / 426,738.27-640,202.74-160,501.10

Finding the Fourth Proportional to 426,738.27, 640,202.74 and 160,501.10

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Solution

The fourth proportional to 426,738.27, 640,202.74 and 160,501.10 is: 240,787.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,738.27 : 640,202.74 = 160,501.10 : x
  2. Step 2: Convert to fraction form
    426,738.27/640,202.74 = 160,501.10/x
  3. Step 3: Cross multiply
    426,738.27x = 640,202.74 × 160,501.10
  4. Step 4: Simplify right side
    426,738.27x = 102,753,240,390.75
  5. Step 5: Solve for x
    x = 102,753,240,390.75/426,738.27
  6. Step 6: Final answer
    x = 240,787.50

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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.