Home / 340,121.85-470,015.51-255,091.29

Finding the Fourth Proportional to 340,121.85, 470,015.51 and 255,091.29

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Solution

The fourth proportional to 340,121.85, 470,015.51 and 255,091.29 is: 352,511.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,121.85 : 470,015.51 = 255,091.29 : x
  2. Step 2: Convert to fraction form
    340,121.85/470,015.51 = 255,091.29/x
  3. Step 3: Cross multiply
    340,121.85x = 470,015.51 × 255,091.29
  4. Step 4: Simplify right side
    340,121.85x = 119,896,861,490.45
  5. Step 5: Solve for x
    x = 119,896,861,490.45/340,121.85
  6. Step 6: Final answer
    x = 352,511.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.