Home / 280,328.22-386,852.27-157,810.64

Finding the Fourth Proportional to 280,328.22, 386,852.27 and 157,810.64

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Solution

The fourth proportional to 280,328.22, 386,852.27 and 157,810.64 is: 217,778.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,328.22 : 386,852.27 = 157,810.64 : x
  2. Step 2: Convert to fraction form
    280,328.22/386,852.27 = 157,810.64/x
  3. Step 3: Cross multiply
    280,328.22x = 386,852.27 × 157,810.64
  4. Step 4: Simplify right side
    280,328.22x = 61,049,401,590.84
  5. Step 5: Solve for x
    x = 61,049,401,590.84/280,328.22
  6. Step 6: Final answer
    x = 217,778.29

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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.