Home / 307,856.40-461,784.60-181,885.20

Finding the Fourth Proportional to 307,856.40, 461,784.60 and 181,885.20

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Solution

The fourth proportional to 307,856.40, 461,784.60 and 181,885.20 is: 272,827.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,856.40 : 461,784.60 = 181,885.20 : x
  2. Step 2: Convert to fraction form
    307,856.40/461,784.60 = 181,885.20/x
  3. Step 3: Cross multiply
    307,856.40x = 461,784.60 × 181,885.20
  4. Step 4: Simplify right side
    307,856.40x = 83,991,784,327.92
  5. Step 5: Solve for x
    x = 83,991,784,327.92/307,856.40
  6. Step 6: Final answer
    x = 272,827.80

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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.