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Finding the Fourth Proportional to 368,248.32, 505,980.39 and 292,665.60

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Solution

The fourth proportional to 368,248.32, 505,980.39 and 292,665.60 is: 402,128.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,248.32 : 505,980.39 = 292,665.60 : x
  2. Step 2: Convert to fraction form
    368,248.32/505,980.39 = 292,665.60/x
  3. Step 3: Cross multiply
    368,248.32x = 505,980.39 × 292,665.60
  4. Step 4: Simplify right side
    368,248.32x = 148,083,054,427.58
  5. Step 5: Solve for x
    x = 148,083,054,427.58/368,248.32
  6. Step 6: Final answer
    x = 402,128.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.