Home / 240,518.93-360,671.75-128,178.21

Finding the Fourth Proportional to 240,518.93, 360,671.75 and 128,178.21

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Solution

The fourth proportional to 240,518.93, 360,671.75 and 128,178.21 is: 192,210.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,518.93 : 360,671.75 = 128,178.21 : x
  2. Step 2: Convert to fraction form
    240,518.93/360,671.75 = 128,178.21/x
  3. Step 3: Cross multiply
    240,518.93x = 360,671.75 × 128,178.21
  4. Step 4: Simplify right side
    240,518.93x = 46,230,258,671.68
  5. Step 5: Solve for x
    x = 46,230,258,671.68/240,518.93
  6. Step 6: Final answer
    x = 192,210.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.