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Finding the Fourth Proportional to 308,966.80, 433,175.60 and 308,966.80

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Solution

The fourth proportional to 308,966.80, 433,175.60 and 308,966.80 is: 433,175.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,966.80 : 433,175.60 = 308,966.80 : x
  2. Step 2: Convert to fraction form
    308,966.80/433,175.60 = 308,966.80/x
  3. Step 3: Cross multiply
    308,966.80x = 433,175.60 × 308,966.80
  4. Step 4: Simplify right side
    308,966.80x = 133,836,878,970.08
  5. Step 5: Solve for x
    x = 133,836,878,970.08/308,966.80
  6. Step 6: Final answer
    x = 433,175.60

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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.