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Finding the Fourth Proportional to 256,765.02, 385,069.77 and 69,752.22

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Solution

The fourth proportional to 256,765.02, 385,069.77 and 69,752.22 is: 104,607.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,765.02 : 385,069.77 = 69,752.22 : x
  2. Step 2: Convert to fraction form
    256,765.02/385,069.77 = 69,752.22/x
  3. Step 3: Cross multiply
    256,765.02x = 385,069.77 × 69,752.22
  4. Step 4: Simplify right side
    256,765.02x = 26,859,471,312.39
  5. Step 5: Solve for x
    x = 26,859,471,312.39/256,765.02
  6. Step 6: Final answer
    x = 104,607.21

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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.