Home / 287,916.93-397,452.78-185,992.10

Finding the Fourth Proportional to 287,916.93, 397,452.78 and 185,992.10

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Solution

The fourth proportional to 287,916.93, 397,452.78 and 185,992.10 is: 256,751.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,916.93 : 397,452.78 = 185,992.10 : x
  2. Step 2: Convert to fraction form
    287,916.93/397,452.78 = 185,992.10/x
  3. Step 3: Cross multiply
    287,916.93x = 397,452.78 × 185,992.10
  4. Step 4: Simplify right side
    287,916.93x = 73,923,075,215.77
  5. Step 5: Solve for x
    x = 73,923,075,215.77/287,916.93
  6. Step 6: Final answer
    x = 256,751.40

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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.