Home / 288,742.08-432,907.38-111,099.36

Finding the Fourth Proportional to 288,742.08, 432,907.38 and 111,099.36

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Solution

The fourth proportional to 288,742.08, 432,907.38 and 111,099.36 is: 166,569.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,742.08 : 432,907.38 = 111,099.36 : x
  2. Step 2: Convert to fraction form
    288,742.08/432,907.38 = 111,099.36/x
  3. Step 3: Cross multiply
    288,742.08x = 432,907.38 × 111,099.36
  4. Step 4: Simplify right side
    288,742.08x = 48,095,732,857.28
  5. Step 5: Solve for x
    x = 48,095,732,857.28/288,742.08
  6. Step 6: Final answer
    x = 166,569.88

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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.