Home / 255,430.58-352,480.34-140,686.89

Finding the Fourth Proportional to 255,430.58, 352,480.34 and 140,686.89

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Solution

The fourth proportional to 255,430.58, 352,480.34 and 140,686.89 is: 194,140.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,430.58 : 352,480.34 = 140,686.89 : x
  2. Step 2: Convert to fraction form
    255,430.58/352,480.34 = 140,686.89/x
  3. Step 3: Cross multiply
    255,430.58x = 352,480.34 × 140,686.89
  4. Step 4: Simplify right side
    255,430.58x = 49,589,362,820.74
  5. Step 5: Solve for x
    x = 49,589,362,820.74/255,430.58
  6. Step 6: Final answer
    x = 194,140.27

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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.