Home / 371,284.23-512,284.38-210,139.26

Finding the Fourth Proportional to 371,284.23, 512,284.38 and 210,139.26

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Solution

The fourth proportional to 371,284.23, 512,284.38 and 210,139.26 is: 289,942.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,284.23 : 512,284.38 = 210,139.26 : x
  2. Step 2: Convert to fraction form
    371,284.23/512,284.38 = 210,139.26/x
  3. Step 3: Cross multiply
    371,284.23x = 512,284.38 × 210,139.26
  4. Step 4: Simplify right side
    371,284.23x = 107,651,060,522.76
  5. Step 5: Solve for x
    x = 107,651,060,522.76/371,284.23
  6. Step 6: Final answer
    x = 289,942.45

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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.