Home / 280,938.07-387,719.87-160,118.29

Finding the Fourth Proportional to 280,938.07, 387,719.87 and 160,118.29

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Solution

The fourth proportional to 280,938.07, 387,719.87 and 160,118.29 is: 220,977.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,938.07 : 387,719.87 = 160,118.29 : x
  2. Step 2: Convert to fraction form
    280,938.07/387,719.87 = 160,118.29/x
  3. Step 3: Cross multiply
    280,938.07x = 387,719.87 × 160,118.29
  4. Step 4: Simplify right side
    280,938.07x = 62,081,042,583.42
  5. Step 5: Solve for x
    x = 62,081,042,583.42/280,938.07
  6. Step 6: Final answer
    x = 220,977.68

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1.5x scale

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.