Home / 430,118.49-644,774.73-145,610.04

Finding the Fourth Proportional to 430,118.49, 644,774.73 and 145,610.04

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Solution

The fourth proportional to 430,118.49, 644,774.73 and 145,610.04 is: 218,278.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,118.49 : 644,774.73 = 145,610.04 : x
  2. Step 2: Convert to fraction form
    430,118.49/644,774.73 = 145,610.04/x
  3. Step 3: Cross multiply
    430,118.49x = 644,774.73 × 145,610.04
  4. Step 4: Simplify right side
    430,118.49x = 93,885,674,226.29
  5. Step 5: Solve for x
    x = 93,885,674,226.29/430,118.49
  6. Step 6: Final answer
    x = 218,278.63

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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.