Home / 286,485.72-395,348.96-157,432.21

Finding the Fourth Proportional to 286,485.72, 395,348.96 and 157,432.21

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Solution

The fourth proportional to 286,485.72, 395,348.96 and 157,432.21 is: 217,255.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,485.72 : 395,348.96 = 157,432.21 : x
  2. Step 2: Convert to fraction form
    286,485.72/395,348.96 = 157,432.21/x
  3. Step 3: Cross multiply
    286,485.72x = 395,348.96 × 157,432.21
  4. Step 4: Simplify right side
    286,485.72x = 62,240,660,494.00
  5. Step 5: Solve for x
    x = 62,240,660,494.00/286,485.72
  6. Step 6: Final answer
    x = 217,255.72

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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.