Home / 210,445.20-290,342.34-119,778.48

Finding the Fourth Proportional to 210,445.20, 290,342.34 and 119,778.48

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Solution

The fourth proportional to 210,445.20, 290,342.34 and 119,778.48 is: 165,253.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,445.20 : 290,342.34 = 119,778.48 : x
  2. Step 2: Convert to fraction form
    210,445.20/290,342.34 = 119,778.48/x
  3. Step 3: Cross multiply
    210,445.20x = 290,342.34 × 119,778.48
  4. Step 4: Simplify right side
    210,445.20x = 34,776,764,164.84
  5. Step 5: Solve for x
    x = 34,776,764,164.84/210,445.20
  6. Step 6: Final answer
    x = 165,253.30

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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.