Home / 242,865.16-335,184.32-139,531.68

Finding the Fourth Proportional to 242,865.16, 335,184.32 and 139,531.68

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Solution

The fourth proportional to 242,865.16, 335,184.32 and 139,531.68 is: 192,571.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,865.16 : 335,184.32 = 139,531.68 : x
  2. Step 2: Convert to fraction form
    242,865.16/335,184.32 = 139,531.68/x
  3. Step 3: Cross multiply
    242,865.16x = 335,184.32 × 139,531.68
  4. Step 4: Simplify right side
    242,865.16x = 46,768,831,279.26
  5. Step 5: Solve for x
    x = 46,768,831,279.26/242,865.16
  6. Step 6: Final answer
    x = 192,571.18

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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.