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Finding the Fourth Proportional to 212,969.16, 293,899.32 and 117,479.16

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Solution

The fourth proportional to 212,969.16, 293,899.32 and 117,479.16 is: 162,122.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,969.16 : 293,899.32 = 117,479.16 : x
  2. Step 2: Convert to fraction form
    212,969.16/293,899.32 = 117,479.16/x
  3. Step 3: Cross multiply
    212,969.16x = 293,899.32 × 117,479.16
  4. Step 4: Simplify right side
    212,969.16x = 34,527,045,238.17
  5. Step 5: Solve for x
    x = 34,527,045,238.17/212,969.16
  6. Step 6: Final answer
    x = 162,122.28

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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.