Home / 356,916.80-534,921.60-146,316.80

Finding the Fourth Proportional to 356,916.80, 534,921.60 and 146,316.80

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Solution

The fourth proportional to 356,916.80, 534,921.60 and 146,316.80 is: 219,289.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,916.80 : 534,921.60 = 146,316.80 : x
  2. Step 2: Convert to fraction form
    356,916.80/534,921.60 = 146,316.80/x
  3. Step 3: Cross multiply
    356,916.80x = 534,921.60 × 146,316.80
  4. Step 4: Simplify right side
    356,916.80x = 78,268,016,762.88
  5. Step 5: Solve for x
    x = 78,268,016,762.88/356,916.80
  6. Step 6: Final answer
    x = 219,289.25

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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.