Home / 228,055.02-342,123.60-78,256.62

Finding the Fourth Proportional to 228,055.02, 342,123.60 and 78,256.62

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Solution

The fourth proportional to 228,055.02, 342,123.60 and 78,256.62 is: 117,399.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,055.02 : 342,123.60 = 78,256.62 : x
  2. Step 2: Convert to fraction form
    228,055.02/342,123.60 = 78,256.62/x
  3. Step 3: Cross multiply
    228,055.02x = 342,123.60 × 78,256.62
  4. Step 4: Simplify right side
    228,055.02x = 26,773,436,558.23
  5. Step 5: Solve for x
    x = 26,773,436,558.23/228,055.02
  6. Step 6: Final answer
    x = 117,399.02

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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.