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Finding the Fourth Proportional to 212,374.56, 293,074.56 and 148,689.12

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Solution

The fourth proportional to 212,374.56, 293,074.56 and 148,689.12 is: 205,189.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,374.56 : 293,074.56 = 148,689.12 : x
  2. Step 2: Convert to fraction form
    212,374.56/293,074.56 = 148,689.12/x
  3. Step 3: Cross multiply
    212,374.56x = 293,074.56 × 148,689.12
  4. Step 4: Simplify right side
    212,374.56x = 43,576,998,420.79
  5. Step 5: Solve for x
    x = 43,576,998,420.79/212,374.56
  6. Step 6: Final answer
    x = 205,189.35

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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.