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Finding the Fourth Proportional to 148,973.60, 223,460.40 and 138,038.60

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Solution

The fourth proportional to 148,973.60, 223,460.40 and 138,038.60 is: 207,057.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,973.60 : 223,460.40 = 138,038.60 : x
  2. Step 2: Convert to fraction form
    148,973.60/223,460.40 = 138,038.60/x
  3. Step 3: Cross multiply
    148,973.60x = 223,460.40 × 138,038.60
  4. Step 4: Simplify right side
    148,973.60x = 30,846,160,771.44
  5. Step 5: Solve for x
    x = 30,846,160,771.44/148,973.60
  6. Step 6: Final answer
    x = 207,057.90

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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.