Home / 210,726.10-315,311.55-192,063.70

Finding the Fourth Proportional to 210,726.10, 315,311.55 and 192,063.70

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Solution

The fourth proportional to 210,726.10, 315,311.55 and 192,063.70 is: 287,386.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,726.10 : 315,311.55 = 192,063.70 : x
  2. Step 2: Convert to fraction form
    210,726.10/315,311.55 = 192,063.70/x
  3. Step 3: Cross multiply
    210,726.10x = 315,311.55 × 192,063.70
  4. Step 4: Simplify right side
    210,726.10x = 60,559,902,945.74
  5. Step 5: Solve for x
    x = 60,559,902,945.74/210,726.10
  6. Step 6: Final answer
    x = 287,386.82

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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.