Home / 280,047.13-386,488.16-159,226.45

Finding the Fourth Proportional to 280,047.13, 386,488.16 and 159,226.45

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Solution

The fourth proportional to 280,047.13, 386,488.16 and 159,226.45 is: 219,745.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,047.13 : 386,488.16 = 159,226.45 : x
  2. Step 2: Convert to fraction form
    280,047.13/386,488.16 = 159,226.45/x
  3. Step 3: Cross multiply
    280,047.13x = 386,488.16 × 159,226.45
  4. Step 4: Simplify right side
    280,047.13x = 61,539,137,683.83
  5. Step 5: Solve for x
    x = 61,539,137,683.83/280,047.13
  6. Step 6: Final answer
    x = 219,745.65

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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.