Home / 212,347.37-318,254.34-127,021.16

Finding the Fourth Proportional to 212,347.37, 318,254.34 and 127,021.16

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Solution

The fourth proportional to 212,347.37, 318,254.34 and 127,021.16 is: 190,372.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,347.37 : 318,254.34 = 127,021.16 : x
  2. Step 2: Convert to fraction form
    212,347.37/318,254.34 = 127,021.16/x
  3. Step 3: Cross multiply
    212,347.37x = 318,254.34 × 127,021.16
  4. Step 4: Simplify right side
    212,347.37x = 40,425,035,441.83
  5. Step 5: Solve for x
    x = 40,425,035,441.83/212,347.37
  6. Step 6: Final answer
    x = 190,372.20

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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.