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Finding the Fourth Proportional to 266,989.77, 368,436.80 and 146,128.46

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Solution

The fourth proportional to 266,989.77, 368,436.80 and 146,128.46 is: 201,652.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,989.77 : 368,436.80 = 146,128.46 : x
  2. Step 2: Convert to fraction form
    266,989.77/368,436.80 = 146,128.46/x
  3. Step 3: Cross multiply
    266,989.77x = 368,436.80 × 146,128.46
  4. Step 4: Simplify right side
    266,989.77x = 53,839,100,714.47
  5. Step 5: Solve for x
    x = 53,839,100,714.47/266,989.77
  6. Step 6: Final answer
    x = 201,652.30

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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.