Home / 371,272.18-512,233.65-210,111.22

Finding the Fourth Proportional to 371,272.18, 512,233.65 and 210,111.22

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Solution

The fourth proportional to 371,272.18, 512,233.65 and 210,111.22 is: 289,884.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,272.18 : 512,233.65 = 210,111.22 : x
  2. Step 2: Convert to fraction form
    371,272.18/512,233.65 = 210,111.22/x
  3. Step 3: Cross multiply
    371,272.18x = 512,233.65 × 210,111.22
  4. Step 4: Simplify right side
    371,272.18x = 107,626,037,126.55
  5. Step 5: Solve for x
    x = 107,626,037,126.55/371,272.18
  6. Step 6: Final answer
    x = 289,884.46

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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.