Home / 231,462.81-347,222.16-81,672.35

Finding the Fourth Proportional to 231,462.81, 347,222.16 and 81,672.35

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Solution

The fourth proportional to 231,462.81, 347,222.16 and 81,672.35 is: 122,518.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,462.81 : 347,222.16 = 81,672.35 : x
  2. Step 2: Convert to fraction form
    231,462.81/347,222.16 = 81,672.35/x
  3. Step 3: Cross multiply
    231,462.81x = 347,222.16 × 81,672.35
  4. Step 4: Simplify right side
    231,462.81x = 28,358,448,043.17
  5. Step 5: Solve for x
    x = 28,358,448,043.17/231,462.81
  6. Step 6: Final answer
    x = 122,518.38

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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.