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Finding the Fourth Proportional to 213,673.89, 320,368.46 and 117,656.34

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Solution

The fourth proportional to 213,673.89, 320,368.46 and 117,656.34 is: 176,406.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,673.89 : 320,368.46 = 117,656.34 : x
  2. Step 2: Convert to fraction form
    213,673.89/320,368.46 = 117,656.34/x
  3. Step 3: Cross multiply
    213,673.89x = 320,368.46 × 117,656.34
  4. Step 4: Simplify right side
    213,673.89x = 37,693,378,853.19
  5. Step 5: Solve for x
    x = 37,693,378,853.19/213,673.89
  6. Step 6: Final answer
    x = 176,406.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.