Home / 371,999.72-513,399.75-210,837.46

Finding the Fourth Proportional to 371,999.72, 513,399.75 and 210,837.46

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Solution

The fourth proportional to 371,999.72, 513,399.75 and 210,837.46 is: 290,978.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,999.72 : 513,399.75 = 210,837.46 : x
  2. Step 2: Convert to fraction form
    371,999.72/513,399.75 = 210,837.46/x
  3. Step 3: Cross multiply
    371,999.72x = 513,399.75 × 210,837.46
  4. Step 4: Simplify right side
    371,999.72x = 108,243,899,254.64
  5. Step 5: Solve for x
    x = 108,243,899,254.64/371,999.72
  6. Step 6: Final answer
    x = 290,978.44

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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.