Home / 470,845.14-649,763.07-255,985.20

Finding the Fourth Proportional to 470,845.14, 649,763.07 and 255,985.20

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Solution

The fourth proportional to 470,845.14, 649,763.07 and 255,985.20 is: 353,257.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,845.14 : 649,763.07 = 255,985.20 : x
  2. Step 2: Convert to fraction form
    470,845.14/649,763.07 = 255,985.20/x
  3. Step 3: Cross multiply
    470,845.14x = 649,763.07 × 255,985.20
  4. Step 4: Simplify right side
    470,845.14x = 166,329,729,426.56
  5. Step 5: Solve for x
    x = 166,329,729,426.56/470,845.14
  6. Step 6: Final answer
    x = 353,257.82

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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.