Home / 280,948.71-387,634.50-160,087.41

Finding the Fourth Proportional to 280,948.71, 387,634.50 and 160,087.41

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Solution

The fourth proportional to 280,948.71, 387,634.50 and 160,087.41 is: 220,878.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,948.71 : 387,634.50 = 160,087.41 : x
  2. Step 2: Convert to fraction form
    280,948.71/387,634.50 = 160,087.41/x
  3. Step 3: Cross multiply
    280,948.71x = 387,634.50 × 160,087.41
  4. Step 4: Simplify right side
    280,948.71x = 62,055,403,131.65
  5. Step 5: Solve for x
    x = 62,055,403,131.65/280,948.71
  6. Step 6: Final answer
    x = 220,878.05

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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.