Home / 228,047.10-342,143.55-78,383.40

Finding the Fourth Proportional to 228,047.10, 342,143.55 and 78,383.40

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Solution

The fourth proportional to 228,047.10, 342,143.55 and 78,383.40 is: 117,600.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,047.10 : 342,143.55 = 78,383.40 : x
  2. Step 2: Convert to fraction form
    228,047.10/342,143.55 = 78,383.40/x
  3. Step 3: Cross multiply
    228,047.10x = 342,143.55 × 78,383.40
  4. Step 4: Simplify right side
    228,047.10x = 26,818,374,737.07
  5. Step 5: Solve for x
    x = 26,818,374,737.07/228,047.10
  6. Step 6: Final answer
    x = 117,600.16

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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.