Home / 348,780.75-523,038.29-206,666.12

Finding the Fourth Proportional to 348,780.75, 523,038.29 and 206,666.12

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Solution

The fourth proportional to 348,780.75, 523,038.29 and 206,666.12 is: 309,920.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,780.75 : 523,038.29 = 206,666.12 : x
  2. Step 2: Convert to fraction form
    348,780.75/523,038.29 = 206,666.12/x
  3. Step 3: Cross multiply
    348,780.75x = 523,038.29 × 206,666.12
  4. Step 4: Simplify right side
    348,780.75x = 108,094,290,357.21
  5. Step 5: Solve for x
    x = 108,094,290,357.21/348,780.75
  6. Step 6: Final answer
    x = 309,920.46

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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.