Home / 210,384.80-315,577.20-131,741.60

Finding the Fourth Proportional to 210,384.80, 315,577.20 and 131,741.60

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Solution

The fourth proportional to 210,384.80, 315,577.20 and 131,741.60 is: 197,612.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,384.80 : 315,577.20 = 131,741.60 : x
  2. Step 2: Convert to fraction form
    210,384.80/315,577.20 = 131,741.60/x
  3. Step 3: Cross multiply
    210,384.80x = 315,577.20 × 131,741.60
  4. Step 4: Simplify right side
    210,384.80x = 41,574,645,251.52
  5. Step 5: Solve for x
    x = 41,574,645,251.52/210,384.80
  6. Step 6: Final answer
    x = 197,612.40

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1.5x scale

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.