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Finding the Fourth Proportional to 470,907.18, 649,860.03 and 256,048.65

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Solution

The fourth proportional to 470,907.18, 649,860.03 and 256,048.65 is: 353,351.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,907.18 : 649,860.03 = 256,048.65 : x
  2. Step 2: Convert to fraction form
    470,907.18/649,860.03 = 256,048.65/x
  3. Step 3: Cross multiply
    470,907.18x = 649,860.03 × 256,048.65
  4. Step 4: Simplify right side
    470,907.18x = 166,395,783,370.46
  5. Step 5: Solve for x
    x = 166,395,783,370.46/470,907.18
  6. Step 6: Final answer
    x = 353,351.55

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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.