Home / 279,141.08-385,216.51-151,817.60

Finding the Fourth Proportional to 279,141.08, 385,216.51 and 151,817.60

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Solution

The fourth proportional to 279,141.08, 385,216.51 and 151,817.60 is: 209,509.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,141.08 : 385,216.51 = 151,817.60 : x
  2. Step 2: Convert to fraction form
    279,141.08/385,216.51 = 151,817.60/x
  3. Step 3: Cross multiply
    279,141.08x = 385,216.51 × 151,817.60
  4. Step 4: Simplify right side
    279,141.08x = 58,482,646,028.58
  5. Step 5: Solve for x
    x = 58,482,646,028.58/279,141.08
  6. Step 6: Final answer
    x = 209,509.28

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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.