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Finding the Fourth Proportional to 371,775.56, 513,051.96 and 210,662.00

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Solution

The fourth proportional to 371,775.56, 513,051.96 and 210,662.00 is: 290,714.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,775.56 : 513,051.96 = 210,662.00 : x
  2. Step 2: Convert to fraction form
    371,775.56/513,051.96 = 210,662.00/x
  3. Step 3: Cross multiply
    371,775.56x = 513,051.96 × 210,662.00
  4. Step 4: Simplify right side
    371,775.56x = 108,080,549,432.26
  5. Step 5: Solve for x
    x = 108,080,549,432.26/371,775.56
  6. Step 6: Final answer
    x = 290,714.51

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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.