Home / 291,741.02-402,052.98-211,031.66

Finding the Fourth Proportional to 291,741.02, 402,052.98 and 211,031.66

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Solution

The fourth proportional to 291,741.02, 402,052.98 and 211,031.66 is: 290,826.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,741.02 : 402,052.98 = 211,031.66 : x
  2. Step 2: Convert to fraction form
    291,741.02/402,052.98 = 211,031.66/x
  3. Step 3: Cross multiply
    291,741.02x = 402,052.98 × 211,031.66
  4. Step 4: Simplify right side
    291,741.02x = 84,845,907,777.35
  5. Step 5: Solve for x
    x = 84,845,907,777.35/291,741.02
  6. Step 6: Final answer
    x = 290,826.12

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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.