Home / 257,055.85-354,686.66-161,507.19

Finding the Fourth Proportional to 257,055.85, 354,686.66 and 161,507.19

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Solution

The fourth proportional to 257,055.85, 354,686.66 and 161,507.19 is: 222,848.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,055.85 : 354,686.66 = 161,507.19 : x
  2. Step 2: Convert to fraction form
    257,055.85/354,686.66 = 161,507.19/x
  3. Step 3: Cross multiply
    257,055.85x = 354,686.66 × 161,507.19
  4. Step 4: Simplify right side
    257,055.85x = 57,284,445,828.64
  5. Step 5: Solve for x
    x = 57,284,445,828.64/257,055.85
  6. Step 6: Final answer
    x = 222,848.25

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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.