Home / 228,100.34-342,065.43-78,298.13

Finding the Fourth Proportional to 228,100.34, 342,065.43 and 78,298.13

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Solution

The fourth proportional to 228,100.34, 342,065.43 and 78,298.13 is: 117,417.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,100.34 : 342,065.43 = 78,298.13 : x
  2. Step 2: Convert to fraction form
    228,100.34/342,065.43 = 78,298.13/x
  3. Step 3: Cross multiply
    228,100.34x = 342,065.43 × 78,298.13
  4. Step 4: Simplify right side
    228,100.34x = 26,783,084,361.81
  5. Step 5: Solve for x
    x = 26,783,084,361.81/228,100.34
  6. Step 6: Final answer
    x = 117,417.99

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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.