Home / 288,970.46-398,859.38-168,135.09

Finding the Fourth Proportional to 288,970.46, 398,859.38 and 168,135.09

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Solution

The fourth proportional to 288,970.46, 398,859.38 and 168,135.09 is: 232,073.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,970.46 : 398,859.38 = 168,135.09 : x
  2. Step 2: Convert to fraction form
    288,970.46/398,859.38 = 168,135.09/x
  3. Step 3: Cross multiply
    288,970.46x = 398,859.38 × 168,135.09
  4. Step 4: Simplify right side
    288,970.46x = 67,062,254,918.67
  5. Step 5: Solve for x
    x = 67,062,254,918.67/288,970.46
  6. Step 6: Final answer
    x = 232,073.05

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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.