Home / 210,010.09-315,016.28-52,238.55

Finding the Fourth Proportional to 210,010.09, 315,016.28 and 52,238.55

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Solution

The fourth proportional to 210,010.09, 315,016.28 and 52,238.55 is: 78,358.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,010.09 : 315,016.28 = 52,238.55 : x
  2. Step 2: Convert to fraction form
    210,010.09/315,016.28 = 52,238.55/x
  3. Step 3: Cross multiply
    210,010.09x = 315,016.28 × 52,238.55
  4. Step 4: Simplify right side
    210,010.09x = 16,455,993,693.59
  5. Step 5: Solve for x
    x = 16,455,993,693.59/210,010.09
  6. Step 6: Final answer
    x = 78,358.11

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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.