Home / 228,990.12-315,941.76-148,421.04

Finding the Fourth Proportional to 228,990.12, 315,941.76 and 148,421.04

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Solution

The fourth proportional to 228,990.12, 315,941.76 and 148,421.04 is: 204,779.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,990.12 : 315,941.76 = 148,421.04 : x
  2. Step 2: Convert to fraction form
    228,990.12/315,941.76 = 148,421.04/x
  3. Step 3: Cross multiply
    228,990.12x = 315,941.76 × 148,421.04
  4. Step 4: Simplify right side
    228,990.12x = 46,892,404,598.63
  5. Step 5: Solve for x
    x = 46,892,404,598.63/228,990.12
  6. Step 6: Final answer
    x = 204,779.16

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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.