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Finding the Fourth Proportional to 253,485.84, 349,670.34 and 162,855.30

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Solution

The fourth proportional to 253,485.84, 349,670.34 and 162,855.30 is: 224,650.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,485.84 : 349,670.34 = 162,855.30 : x
  2. Step 2: Convert to fraction form
    253,485.84/349,670.34 = 162,855.30/x
  3. Step 3: Cross multiply
    253,485.84x = 349,670.34 × 162,855.30
  4. Step 4: Simplify right side
    253,485.84x = 56,945,668,121.80
  5. Step 5: Solve for x
    x = 56,945,668,121.80/253,485.84
  6. Step 6: Final answer
    x = 224,650.29

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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.