Home / 348,328.12-522,538.76-137,916.86

Finding the Fourth Proportional to 348,328.12, 522,538.76 and 137,916.86

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Solution

The fourth proportional to 348,328.12, 522,538.76 and 137,916.86 is: 206,893.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,328.12 : 522,538.76 = 137,916.86 : x
  2. Step 2: Convert to fraction form
    348,328.12/522,538.76 = 137,916.86/x
  3. Step 3: Cross multiply
    348,328.12x = 522,538.76 × 137,916.86
  4. Step 4: Simplify right side
    348,328.12x = 72,066,905,007.49
  5. Step 5: Solve for x
    x = 72,066,905,007.49/348,328.12
  6. Step 6: Final answer
    x = 206,893.73

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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.