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Finding the Fourth Proportional to 230,646.51, 318,291.89 and 130,044.51

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Solution

The fourth proportional to 230,646.51, 318,291.89 and 130,044.51 is: 179,461.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,646.51 : 318,291.89 = 130,044.51 : x
  2. Step 2: Convert to fraction form
    230,646.51/318,291.89 = 130,044.51/x
  3. Step 3: Cross multiply
    230,646.51x = 318,291.89 × 130,044.51
  4. Step 4: Simplify right side
    230,646.51x = 41,392,112,221.80
  5. Step 5: Solve for x
    x = 41,392,112,221.80/230,646.51
  6. Step 6: Final answer
    x = 179,461.26

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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.