Home / 458,156.42-686,533.14-191,771.90

Finding the Fourth Proportional to 458,156.42, 686,533.14 and 191,771.90

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Solution

The fourth proportional to 458,156.42, 686,533.14 and 191,771.90 is: 287,364.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,156.42 : 686,533.14 = 191,771.90 : x
  2. Step 2: Convert to fraction form
    458,156.42/686,533.14 = 191,771.90/x
  3. Step 3: Cross multiply
    458,156.42x = 686,533.14 × 191,771.90
  4. Step 4: Simplify right side
    458,156.42x = 131,657,764,670.77
  5. Step 5: Solve for x
    x = 131,657,764,670.77/458,156.42
  6. Step 6: Final answer
    x = 287,364.23

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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.