Home / 291,979.15-437,791.74-142,068.40

Finding the Fourth Proportional to 291,979.15, 437,791.74 and 142,068.40

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Solution

The fourth proportional to 291,979.15, 437,791.74 and 142,068.40 is: 213,016.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,979.15 : 437,791.74 = 142,068.40 : x
  2. Step 2: Convert to fraction form
    291,979.15/437,791.74 = 142,068.40/x
  3. Step 3: Cross multiply
    291,979.15x = 437,791.74 × 142,068.40
  4. Step 4: Simplify right side
    291,979.15x = 62,196,372,035.02
  5. Step 5: Solve for x
    x = 62,196,372,035.02/291,979.15
  6. Step 6: Final answer
    x = 213,016.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.