Home / 286,860.96-395,865.36-159,530.40

Finding the Fourth Proportional to 286,860.96, 395,865.36 and 159,530.40

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Solution

The fourth proportional to 286,860.96, 395,865.36 and 159,530.40 is: 220,150.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,860.96 : 395,865.36 = 159,530.40 : x
  2. Step 2: Convert to fraction form
    286,860.96/395,865.36 = 159,530.40/x
  3. Step 3: Cross multiply
    286,860.96x = 395,865.36 × 159,530.40
  4. Step 4: Simplify right side
    286,860.96x = 63,152,559,226.94
  5. Step 5: Solve for x
    x = 63,152,559,226.94/286,860.96
  6. Step 6: Final answer
    x = 220,150.41

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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.