Home / 292,739.36-403,980-158,603.36

Finding the Fourth Proportional to 292,739.36, 403,980 and 158,603.36

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Solution

The fourth proportional to 292,739.36, 403,980 and 158,603.36 is: 218,872.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,739.36 : 403,980 = 158,603.36 : x
  2. Step 2: Convert to fraction form
    292,739.36/403,980 = 158,603.36/x
  3. Step 3: Cross multiply
    292,739.36x = 403,980 × 158,603.36
  4. Step 4: Simplify right side
    292,739.36x = 64,072,585,372.80
  5. Step 5: Solve for x
    x = 64,072,585,372.80/292,739.36
  6. Step 6: Final answer
    x = 218,872.47

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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.