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Finding the Fourth Proportional to 293,230.87, 438,026.96 and 212,628.98

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Solution

The fourth proportional to 293,230.87, 438,026.96 and 212,628.98 is: 317,624.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,230.87 : 438,026.96 = 212,628.98 : x
  2. Step 2: Convert to fraction form
    293,230.87/438,026.96 = 212,628.98/x
  3. Step 3: Cross multiply
    293,230.87x = 438,026.96 × 212,628.98
  4. Step 4: Simplify right side
    293,230.87x = 93,137,226,147.90
  5. Step 5: Solve for x
    x = 93,137,226,147.90/293,230.87
  6. Step 6: Final answer
    x = 317,624.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.