Home / 281,370.47-388,328.23-160,484.05

Finding the Fourth Proportional to 281,370.47, 388,328.23 and 160,484.05

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Solution

The fourth proportional to 281,370.47, 388,328.23 and 160,484.05 is: 221,489.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,370.47 : 388,328.23 = 160,484.05 : x
  2. Step 2: Convert to fraction form
    281,370.47/388,328.23 = 160,484.05/x
  3. Step 3: Cross multiply
    281,370.47x = 388,328.23 × 160,484.05
  4. Step 4: Simplify right side
    281,370.47x = 62,320,485,138.09
  5. Step 5: Solve for x
    x = 62,320,485,138.09/281,370.47
  6. Step 6: Final answer
    x = 221,489.08

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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.