Home / 290,015.32-400,131.46-169,070.98

Finding the Fourth Proportional to 290,015.32, 400,131.46 and 169,070.98

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Solution

The fourth proportional to 290,015.32, 400,131.46 and 169,070.98 is: 233,265.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,015.32 : 400,131.46 = 169,070.98 : x
  2. Step 2: Convert to fraction form
    290,015.32/400,131.46 = 169,070.98/x
  3. Step 3: Cross multiply
    290,015.32x = 400,131.46 × 169,070.98
  4. Step 4: Simplify right side
    290,015.32x = 67,650,618,071.03
  5. Step 5: Solve for x
    x = 67,650,618,071.03/290,015.32
  6. Step 6: Final answer
    x = 233,265.67

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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.