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Finding the Fourth Proportional to 211,615.34, 292,029 and 116,128.04

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Solution

The fourth proportional to 211,615.34, 292,029 and 116,128.04 is: 160,256.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,615.34 : 292,029 = 116,128.04 : x
  2. Step 2: Convert to fraction form
    211,615.34/292,029 = 116,128.04/x
  3. Step 3: Cross multiply
    211,615.34x = 292,029 × 116,128.04
  4. Step 4: Simplify right side
    211,615.34x = 33,912,755,393.16
  5. Step 5: Solve for x
    x = 33,912,755,393.16/211,615.34
  6. Step 6: Final answer
    x = 160,256.60

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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.