Home / 315,120.24-434,876.04-171,886.32

Finding the Fourth Proportional to 315,120.24, 434,876.04 and 171,886.32

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Solution

The fourth proportional to 315,120.24, 434,876.04 and 171,886.32 is: 237,208.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,120.24 : 434,876.04 = 171,886.32 : x
  2. Step 2: Convert to fraction form
    315,120.24/434,876.04 = 171,886.32/x
  3. Step 3: Cross multiply
    315,120.24x = 434,876.04 × 171,886.32
  4. Step 4: Simplify right side
    315,120.24x = 74,749,242,171.77
  5. Step 5: Solve for x
    x = 74,749,242,171.77/315,120.24
  6. Step 6: Final answer
    x = 237,208.64

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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.