Home / 211,148.36-291,413.72-129,462.16

Finding the Fourth Proportional to 211,148.36, 291,413.72 and 129,462.16

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Solution

The fourth proportional to 211,148.36, 291,413.72 and 129,462.16 is: 178,675.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,148.36 : 291,413.72 = 129,462.16 : x
  2. Step 2: Convert to fraction form
    211,148.36/291,413.72 = 129,462.16/x
  3. Step 3: Cross multiply
    211,148.36x = 291,413.72 × 129,462.16
  4. Step 4: Simplify right side
    211,148.36x = 37,727,049,644.84
  5. Step 5: Solve for x
    x = 37,727,049,644.84/211,148.36
  6. Step 6: Final answer
    x = 178,675.55

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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.