Home / 210,650.40-315,965.88-52,875.36

Finding the Fourth Proportional to 210,650.40, 315,965.88 and 52,875.36

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Solution

The fourth proportional to 210,650.40, 315,965.88 and 52,875.36 is: 79,310.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,650.40 : 315,965.88 = 52,875.36 : x
  2. Step 2: Convert to fraction form
    210,650.40/315,965.88 = 52,875.36/x
  3. Step 3: Cross multiply
    210,650.40x = 315,965.88 × 52,875.36
  4. Step 4: Simplify right side
    210,650.40x = 16,706,809,652.72
  5. Step 5: Solve for x
    x = 16,706,809,652.72/210,650.40
  6. Step 6: Final answer
    x = 79,310.60

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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.