Home / 316,722.15-437,120.05-194,192.86

Finding the Fourth Proportional to 316,722.15, 437,120.05 and 194,192.86

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Solution

The fourth proportional to 316,722.15, 437,120.05 and 194,192.86 is: 268,012.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,722.15 : 437,120.05 = 194,192.86 : x
  2. Step 2: Convert to fraction form
    316,722.15/437,120.05 = 194,192.86/x
  3. Step 3: Cross multiply
    316,722.15x = 437,120.05 × 194,192.86
  4. Step 4: Simplify right side
    316,722.15x = 84,885,592,672.84
  5. Step 5: Solve for x
    x = 84,885,592,672.84/316,722.15
  6. Step 6: Final answer
    x = 268,012.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.