Home / 287,172.36-430,492.41-127,163.07

Finding the Fourth Proportional to 287,172.36, 430,492.41 and 127,163.07

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Solution

The fourth proportional to 287,172.36, 430,492.41 and 127,163.07 is: 190,626.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,172.36 : 430,492.41 = 127,163.07 : x
  2. Step 2: Convert to fraction form
    287,172.36/430,492.41 = 127,163.07/x
  3. Step 3: Cross multiply
    287,172.36x = 430,492.41 × 127,163.07
  4. Step 4: Simplify right side
    287,172.36x = 54,742,736,467.30
  5. Step 5: Solve for x
    x = 54,742,736,467.30/287,172.36
  6. Step 6: Final answer
    x = 190,626.76

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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.