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Finding the Fourth Proportional to 561,570.32, 842,231.28 and 162,124.22

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Solution

The fourth proportional to 561,570.32, 842,231.28 and 162,124.22 is: 243,150.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,570.32 : 842,231.28 = 162,124.22 : x
  2. Step 2: Convert to fraction form
    561,570.32/842,231.28 = 162,124.22/x
  3. Step 3: Cross multiply
    561,570.32x = 842,231.28 × 162,124.22
  4. Step 4: Simplify right side
    561,570.32x = 136,546,089,329.60
  5. Step 5: Solve for x
    x = 136,546,089,329.60/561,570.32
  6. Step 6: Final answer
    x = 243,150.47

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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.