Home / 210,742.60-315,653.10-163,625.80

Finding the Fourth Proportional to 210,742.60, 315,653.10 and 163,625.80

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Solution

The fourth proportional to 210,742.60, 315,653.10 and 163,625.80 is: 245,080.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,742.60 : 315,653.10 = 163,625.80 : x
  2. Step 2: Convert to fraction form
    210,742.60/315,653.10 = 163,625.80/x
  3. Step 3: Cross multiply
    210,742.60x = 315,653.10 × 163,625.80
  4. Step 4: Simplify right side
    210,742.60x = 51,648,991,009.98
  5. Step 5: Solve for x
    x = 51,648,991,009.98/210,742.60
  6. Step 6: Final answer
    x = 245,080.92

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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.