Home / 248,115.10-371,990.40-98,281.30

Finding the Fourth Proportional to 248,115.10, 371,990.40 and 98,281.30

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Solution

The fourth proportional to 248,115.10, 371,990.40 and 98,281.30 is: 147,349.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,115.10 : 371,990.40 = 98,281.30 : x
  2. Step 2: Convert to fraction form
    248,115.10/371,990.40 = 98,281.30/x
  3. Step 3: Cross multiply
    248,115.10x = 371,990.40 × 98,281.30
  4. Step 4: Simplify right side
    248,115.10x = 36,559,700,099.52
  5. Step 5: Solve for x
    x = 36,559,700,099.52/248,115.10
  6. Step 6: Final answer
    x = 147,349.76

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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.