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Finding the Fourth Proportional to 372,169, 513,577.58 and 211,034.90

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Solution

The fourth proportional to 372,169, 513,577.58 and 211,034.90 is: 291,219.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,169 : 513,577.58 = 211,034.90 : x
  2. Step 2: Convert to fraction form
    372,169/513,577.58 = 211,034.90/x
  3. Step 3: Cross multiply
    372,169x = 513,577.58 × 211,034.90
  4. Step 4: Simplify right side
    372,169x = 108,382,793,237.54
  5. Step 5: Solve for x
    x = 108,382,793,237.54/372,169
  6. Step 6: Final answer
    x = 291,219.29

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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.