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Finding the Fourth Proportional to 212,710.50, 293,539.23 and 115,914.15

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Solution

The fourth proportional to 212,710.50, 293,539.23 and 115,914.15 is: 159,960.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,710.50 : 293,539.23 = 115,914.15 : x
  2. Step 2: Convert to fraction form
    212,710.50/293,539.23 = 115,914.15/x
  3. Step 3: Cross multiply
    212,710.50x = 293,539.23 × 115,914.15
  4. Step 4: Simplify right side
    212,710.50x = 34,025,350,337.10
  5. Step 5: Solve for x
    x = 34,025,350,337.10/212,710.50
  6. Step 6: Final answer
    x = 159,960.84

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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.