Home / 266,289.72-367,477.95-145,431.04

Finding the Fourth Proportional to 266,289.72, 367,477.95 and 145,431.04

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Solution

The fourth proportional to 266,289.72, 367,477.95 and 145,431.04 is: 200,693.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,289.72 : 367,477.95 = 145,431.04 : x
  2. Step 2: Convert to fraction form
    266,289.72/367,477.95 = 145,431.04/x
  3. Step 3: Cross multiply
    266,289.72x = 367,477.95 × 145,431.04
  4. Step 4: Simplify right side
    266,289.72x = 53,442,699,718.41
  5. Step 5: Solve for x
    x = 53,442,699,718.41/266,289.72
  6. Step 6: Final answer
    x = 200,693.81

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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.