Home / 280,045.23-386,485.38-159,224.43

Finding the Fourth Proportional to 280,045.23, 386,485.38 and 159,224.43

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Solution

The fourth proportional to 280,045.23, 386,485.38 and 159,224.43 is: 219,742.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,045.23 : 386,485.38 = 159,224.43 : x
  2. Step 2: Convert to fraction form
    280,045.23/386,485.38 = 159,224.43/x
  3. Step 3: Cross multiply
    280,045.23x = 386,485.38 × 159,224.43
  4. Step 4: Simplify right side
    280,045.23x = 61,537,914,333.83
  5. Step 5: Solve for x
    x = 61,537,914,333.83/280,045.23
  6. Step 6: Final answer
    x = 219,742.77

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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.