Home / 280,037.75-386,475.05-159,216.93

Finding the Fourth Proportional to 280,037.75, 386,475.05 and 159,216.93

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Solution

The fourth proportional to 280,037.75, 386,475.05 and 159,216.93 is: 219,732.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,037.75 : 386,475.05 = 159,216.93 : x
  2. Step 2: Convert to fraction form
    280,037.75/386,475.05 = 159,216.93/x
  3. Step 3: Cross multiply
    280,037.75x = 386,475.05 × 159,216.93
  4. Step 4: Simplify right side
    280,037.75x = 61,533,370,186.51
  5. Step 5: Solve for x
    x = 61,533,370,186.51/280,037.75
  6. Step 6: Final answer
    x = 219,732.42

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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.