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Finding the Fourth Proportional to 273,076.60, 409,549.24 and 139,888.30

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Solution

The fourth proportional to 273,076.60, 409,549.24 and 139,888.30 is: 209,798.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,076.60 : 409,549.24 = 139,888.30 : x
  2. Step 2: Convert to fraction form
    273,076.60/409,549.24 = 139,888.30/x
  3. Step 3: Cross multiply
    273,076.60x = 409,549.24 × 139,888.30
  4. Step 4: Simplify right side
    273,076.60x = 57,291,146,949.89
  5. Step 5: Solve for x
    x = 57,291,146,949.89/273,076.60
  6. Step 6: Final answer
    x = 209,798.81

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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.