Home / 309,340.06-426,881.59-180,270.16

Finding the Fourth Proportional to 309,340.06, 426,881.59 and 180,270.16

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Solution

The fourth proportional to 309,340.06, 426,881.59 and 180,270.16 is: 248,768.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,340.06 : 426,881.59 = 180,270.16 : x
  2. Step 2: Convert to fraction form
    309,340.06/426,881.59 = 180,270.16/x
  3. Step 3: Cross multiply
    309,340.06x = 426,881.59 × 180,270.16
  4. Step 4: Simplify right side
    309,340.06x = 76,954,012,026.49
  5. Step 5: Solve for x
    x = 76,954,012,026.49/309,340.06
  6. Step 6: Final answer
    x = 248,768.33

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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.