Home / 207,971.24-287,000.31-112,477.94

Finding the Fourth Proportional to 207,971.24, 287,000.31 and 112,477.94

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Solution

The fourth proportional to 207,971.24, 287,000.31 and 112,477.94 is: 155,219.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,971.24 : 287,000.31 = 112,477.94 : x
  2. Step 2: Convert to fraction form
    207,971.24/287,000.31 = 112,477.94/x
  3. Step 3: Cross multiply
    207,971.24x = 287,000.31 × 112,477.94
  4. Step 4: Simplify right side
    207,971.24x = 32,281,202,213.16
  5. Step 5: Solve for x
    x = 32,281,202,213.16/207,971.24
  6. Step 6: Final answer
    x = 155,219.55

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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.