Home / 207,421.20-310,440.60-190,832.40

Finding the Fourth Proportional to 207,421.20, 310,440.60 and 190,832.40

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Solution

The fourth proportional to 207,421.20, 310,440.60 and 190,832.40 is: 285,612.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,421.20 : 310,440.60 = 190,832.40 : x
  2. Step 2: Convert to fraction form
    207,421.20/310,440.60 = 190,832.40/x
  3. Step 3: Cross multiply
    207,421.20x = 310,440.60 × 190,832.40
  4. Step 4: Simplify right side
    207,421.20x = 59,242,124,755.44
  5. Step 5: Solve for x
    x = 59,242,124,755.44/207,421.20
  6. Step 6: Final answer
    x = 285,612.68

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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.