Home / 245,755.32-339,141.51-138,325.29

Finding the Fourth Proportional to 245,755.32, 339,141.51 and 138,325.29

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Solution

The fourth proportional to 245,755.32, 339,141.51 and 138,325.29 is: 190,888.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,755.32 : 339,141.51 = 138,325.29 : x
  2. Step 2: Convert to fraction form
    245,755.32/339,141.51 = 138,325.29/x
  3. Step 3: Cross multiply
    245,755.32x = 339,141.51 × 138,325.29
  4. Step 4: Simplify right side
    245,755.32x = 46,911,847,721.79
  5. Step 5: Solve for x
    x = 46,911,847,721.79/245,755.32
  6. Step 6: Final answer
    x = 190,888.43

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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.