Home / 356,060.10-491,374.55-194,915.16

Finding the Fourth Proportional to 356,060.10, 491,374.55 and 194,915.16

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Solution

The fourth proportional to 356,060.10, 491,374.55 and 194,915.16 is: 268,989.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,060.10 : 491,374.55 = 194,915.16 : x
  2. Step 2: Convert to fraction form
    356,060.10/491,374.55 = 194,915.16/x
  3. Step 3: Cross multiply
    356,060.10x = 491,374.55 × 194,915.16
  4. Step 4: Simplify right side
    356,060.10x = 95,776,349,520.47
  5. Step 5: Solve for x
    x = 95,776,349,520.47/356,060.10
  6. Step 6: Final answer
    x = 268,989.28

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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.