Home / 371,346.18-512,314.20-210,164.28

Finding the Fourth Proportional to 371,346.18, 512,314.20 and 210,164.28

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Solution

The fourth proportional to 371,346.18, 512,314.20 and 210,164.28 is: 289,945.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,346.18 : 512,314.20 = 210,164.28 : x
  2. Step 2: Convert to fraction form
    371,346.18/512,314.20 = 210,164.28/x
  3. Step 3: Cross multiply
    371,346.18x = 512,314.20 × 210,164.28
  4. Step 4: Simplify right side
    371,346.18x = 107,670,144,976.78
  5. Step 5: Solve for x
    x = 107,670,144,976.78/371,346.18
  6. Step 6: Final answer
    x = 289,945.48

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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.