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Finding the Fourth Proportional to 214,643.94, 296,239.44 and 128,606.32

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Solution

The fourth proportional to 214,643.94, 296,239.44 and 128,606.32 is: 177,495.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,643.94 : 296,239.44 = 128,606.32 : x
  2. Step 2: Convert to fraction form
    214,643.94/296,239.44 = 128,606.32/x
  3. Step 3: Cross multiply
    214,643.94x = 296,239.44 × 128,606.32
  4. Step 4: Simplify right side
    214,643.94x = 38,098,264,217.26
  5. Step 5: Solve for x
    x = 38,098,264,217.26/214,643.94
  6. Step 6: Final answer
    x = 177,495.18

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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.