Home / 279,071.64-385,116.96-151,747.32

Finding the Fourth Proportional to 279,071.64, 385,116.96 and 151,747.32

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Solution

The fourth proportional to 279,071.64, 385,116.96 and 151,747.32 is: 209,410.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,071.64 : 385,116.96 = 151,747.32 : x
  2. Step 2: Convert to fraction form
    279,071.64/385,116.96 = 151,747.32/x
  3. Step 3: Cross multiply
    279,071.64x = 385,116.96 × 151,747.32
  4. Step 4: Simplify right side
    279,071.64x = 58,440,466,566.55
  5. Step 5: Solve for x
    x = 58,440,466,566.55/279,071.64
  6. Step 6: Final answer
    x = 209,410.27

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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.