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Finding the Fourth Proportional to 226,398.51, 312,411.74 and 130,911.39

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Solution

The fourth proportional to 226,398.51, 312,411.74 and 130,911.39 is: 180,647.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,398.51 : 312,411.74 = 130,911.39 : x
  2. Step 2: Convert to fraction form
    226,398.51/312,411.74 = 130,911.39/x
  3. Step 3: Cross multiply
    226,398.51x = 312,411.74 × 130,911.39
  4. Step 4: Simplify right side
    226,398.51x = 40,898,254,481.16
  5. Step 5: Solve for x
    x = 40,898,254,481.16/226,398.51
  6. Step 6: Final answer
    x = 180,647.19

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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.