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Finding the Fourth Proportional to 508,477.60, 762,692.10 and 171,485.20

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Solution

The fourth proportional to 508,477.60, 762,692.10 and 171,485.20 is: 257,219.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,477.60 : 762,692.10 = 171,485.20 : x
  2. Step 2: Convert to fraction form
    508,477.60/762,692.10 = 171,485.20/x
  3. Step 3: Cross multiply
    508,477.60x = 762,692.10 × 171,485.20
  4. Step 4: Simplify right side
    508,477.60x = 130,790,407,306.92
  5. Step 5: Solve for x
    x = 130,790,407,306.92/508,477.60
  6. Step 6: Final answer
    x = 257,219.60

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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.