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Finding the Fourth Proportional to 371,212.08, 512,272.40 and 210,064.20

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Solution

The fourth proportional to 371,212.08, 512,272.40 and 210,064.20 is: 289,888.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,212.08 : 512,272.40 = 210,064.20 : x
  2. Step 2: Convert to fraction form
    371,212.08/512,272.40 = 210,064.20/x
  3. Step 3: Cross multiply
    371,212.08x = 512,272.40 × 210,064.20
  4. Step 4: Simplify right side
    371,212.08x = 107,610,091,888.08
  5. Step 5: Solve for x
    x = 107,610,091,888.08/371,212.08
  6. Step 6: Final answer
    x = 289,888.44

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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.