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Finding the Fourth Proportional to 308,960.20, 433,477.40 and 308,960.20

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Solution

The fourth proportional to 308,960.20, 433,477.40 and 308,960.20 is: 433,477.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,960.20 : 433,477.40 = 308,960.20 : x
  2. Step 2: Convert to fraction form
    308,960.20/433,477.40 = 308,960.20/x
  3. Step 3: Cross multiply
    308,960.20x = 433,477.40 × 308,960.20
  4. Step 4: Simplify right side
    308,960.20x = 133,927,264,199.48
  5. Step 5: Solve for x
    x = 133,927,264,199.48/308,960.20
  6. Step 6: Final answer
    x = 433,477.40

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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.