Home / 210,714.21-290,704.34-130,001.76

Finding the Fourth Proportional to 210,714.21, 290,704.34 and 130,001.76

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Solution

The fourth proportional to 210,714.21, 290,704.34 and 130,001.76 is: 179,352.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,714.21 : 290,704.34 = 130,001.76 : x
  2. Step 2: Convert to fraction form
    210,714.21/290,704.34 = 130,001.76/x
  3. Step 3: Cross multiply
    210,714.21x = 290,704.34 × 130,001.76
  4. Step 4: Simplify right side
    210,714.21x = 37,792,076,164.64
  5. Step 5: Solve for x
    x = 37,792,076,164.64/210,714.21
  6. Step 6: Final answer
    x = 179,352.29

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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.