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Finding the Fourth Proportional to 210,607.63, 290,638.08 and 119,963.57

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Solution

The fourth proportional to 210,607.63, 290,638.08 and 119,963.57 is: 165,549.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,607.63 : 290,638.08 = 119,963.57 : x
  2. Step 2: Convert to fraction form
    210,607.63/290,638.08 = 119,963.57/x
  3. Step 3: Cross multiply
    210,607.63x = 290,638.08 × 119,963.57
  4. Step 4: Simplify right side
    210,607.63x = 34,865,980,201.56
  5. Step 5: Solve for x
    x = 34,865,980,201.56/210,607.63
  6. Step 6: Final answer
    x = 165,549.47

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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.