Home / 266,289.12-367,464.75-145,406.80

Finding the Fourth Proportional to 266,289.12, 367,464.75 and 145,406.80

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Solution

The fourth proportional to 266,289.12, 367,464.75 and 145,406.80 is: 200,653.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,289.12 : 367,464.75 = 145,406.80 : x
  2. Step 2: Convert to fraction form
    266,289.12/367,464.75 = 145,406.80/x
  3. Step 3: Cross multiply
    266,289.12x = 367,464.75 × 145,406.80
  4. Step 4: Simplify right side
    266,289.12x = 53,431,872,075.28
  5. Step 5: Solve for x
    x = 53,431,872,075.28/266,289.12
  6. Step 6: Final answer
    x = 200,653.61

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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.