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Finding the Fourth Proportional to 266,890.72, 368,309 and 146,032.80

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Solution

The fourth proportional to 266,890.72, 368,309 and 146,032.80 is: 201,525.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,890.72 : 368,309 = 146,032.80 : x
  2. Step 2: Convert to fraction form
    266,890.72/368,309 = 146,032.80/x
  3. Step 3: Cross multiply
    266,890.72x = 368,309 × 146,032.80
  4. Step 4: Simplify right side
    266,890.72x = 53,785,194,535.20
  5. Step 5: Solve for x
    x = 53,785,194,535.20/266,890.72
  6. Step 6: Final answer
    x = 201,525.16

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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.