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Finding the Fourth Proportional to 266,275.96, 367,463.74 and 145,420.80

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Solution

The fourth proportional to 266,275.96, 367,463.74 and 145,420.80 is: 200,682.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,275.96 : 367,463.74 = 145,420.80 : x
  2. Step 2: Convert to fraction form
    266,275.96/367,463.74 = 145,420.80/x
  3. Step 3: Cross multiply
    266,275.96x = 367,463.74 × 145,420.80
  4. Step 4: Simplify right side
    266,275.96x = 53,436,871,041.79
  5. Step 5: Solve for x
    x = 53,436,871,041.79/266,275.96
  6. Step 6: Final answer
    x = 200,682.30

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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.