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Finding the Fourth Proportional to 308,960.45, 433,477.75 and 308,960.45

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Solution

The fourth proportional to 308,960.45, 433,477.75 and 308,960.45 is: 433,477.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,960.45 : 433,477.75 = 308,960.45 : x
  2. Step 2: Convert to fraction form
    308,960.45/433,477.75 = 308,960.45/x
  3. Step 3: Cross multiply
    308,960.45x = 433,477.75 × 308,960.45
  4. Step 4: Simplify right side
    308,960.45x = 133,927,480,704.99
  5. Step 5: Solve for x
    x = 133,927,480,704.99/308,960.45
  6. Step 6: Final answer
    x = 433,477.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.