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Finding the Fourth Proportional to 212,651.61, 293,501.73 and 122,068.82

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Solution

The fourth proportional to 212,651.61, 293,501.73 and 122,068.82 is: 168,479.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,651.61 : 293,501.73 = 122,068.82 : x
  2. Step 2: Convert to fraction form
    212,651.61/293,501.73 = 122,068.82/x
  3. Step 3: Cross multiply
    212,651.61x = 293,501.73 × 122,068.82
  4. Step 4: Simplify right side
    212,651.61x = 35,827,408,381.55
  5. Step 5: Solve for x
    x = 35,827,408,381.55/212,651.61
  6. Step 6: Final answer
    x = 168,479.37

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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.