Home / 371,218.10-512,280.68-210,070.22

Finding the Fourth Proportional to 371,218.10, 512,280.68 and 210,070.22

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Solution

The fourth proportional to 371,218.10, 512,280.68 and 210,070.22 is: 289,896.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,218.10 : 512,280.68 = 210,070.22 : x
  2. Step 2: Convert to fraction form
    371,218.10/512,280.68 = 210,070.22/x
  3. Step 3: Cross multiply
    371,218.10x = 512,280.68 × 210,070.22
  4. Step 4: Simplify right side
    371,218.10x = 107,614,915,149.35
  5. Step 5: Solve for x
    x = 107,614,915,149.35/371,218.10
  6. Step 6: Final answer
    x = 289,896.73

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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.