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Finding the Fourth Proportional to 315,751, 469,566.26 and 305,783.68

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Solution

The fourth proportional to 315,751, 469,566.26 and 305,783.68 is: 454,743.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,751 : 469,566.26 = 305,783.68 : x
  2. Step 2: Convert to fraction form
    315,751/469,566.26 = 305,783.68/x
  3. Step 3: Cross multiply
    315,751x = 469,566.26 × 305,783.68
  4. Step 4: Simplify right side
    315,751x = 143,585,698,986.64
  5. Step 5: Solve for x
    x = 143,585,698,986.64/315,751
  6. Step 6: Final answer
    x = 454,743.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.