Home / 371,272.68-512,234.34-210,111.72

Finding the Fourth Proportional to 371,272.68, 512,234.34 and 210,111.72

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Solution

The fourth proportional to 371,272.68, 512,234.34 and 210,111.72 is: 289,885.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,272.68 : 512,234.34 = 210,111.72 : x
  2. Step 2: Convert to fraction form
    371,272.68/512,234.34 = 210,111.72/x
  3. Step 3: Cross multiply
    371,272.68x = 512,234.34 × 210,111.72
  4. Step 4: Simplify right side
    371,272.68x = 107,626,438,220.47
  5. Step 5: Solve for x
    x = 107,626,438,220.47/371,272.68
  6. Step 6: Final answer
    x = 289,885.15

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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.