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Finding the Fourth Proportional to 630,126.46, 945,312.72 and 203,768.20

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Solution

The fourth proportional to 630,126.46, 945,312.72 and 203,768.20 is: 305,692.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,126.46 : 945,312.72 = 203,768.20 : x
  2. Step 2: Convert to fraction form
    630,126.46/945,312.72 = 203,768.20/x
  3. Step 3: Cross multiply
    630,126.46x = 945,312.72 × 203,768.20
  4. Step 4: Simplify right side
    630,126.46x = 192,624,671,391.50
  5. Step 5: Solve for x
    x = 192,624,671,391.50/630,126.46
  6. Step 6: Final answer
    x = 305,692.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.