Home / 245,431.55-368,056.18-85,466.42

Finding the Fourth Proportional to 245,431.55, 368,056.18 and 85,466.42

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Solution

The fourth proportional to 245,431.55, 368,056.18 and 85,466.42 is: 128,167.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,431.55 : 368,056.18 = 85,466.42 : x
  2. Step 2: Convert to fraction form
    245,431.55/368,056.18 = 85,466.42/x
  3. Step 3: Cross multiply
    245,431.55x = 368,056.18 × 85,466.42
  4. Step 4: Simplify right side
    245,431.55x = 31,456,443,710.24
  5. Step 5: Solve for x
    x = 31,456,443,710.24/245,431.55
  6. Step 6: Final answer
    x = 128,167.89

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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.