Home / 421,501.18-581,554.47-251,673.34

Finding the Fourth Proportional to 421,501.18, 581,554.47 and 251,673.34

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Solution

The fourth proportional to 421,501.18, 581,554.47 and 251,673.34 is: 347,239.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,501.18 : 581,554.47 = 251,673.34 : x
  2. Step 2: Convert to fraction form
    421,501.18/581,554.47 = 251,673.34/x
  3. Step 3: Cross multiply
    421,501.18x = 581,554.47 × 251,673.34
  4. Step 4: Simplify right side
    421,501.18x = 146,361,755,856.83
  5. Step 5: Solve for x
    x = 146,361,755,856.83/421,501.18
  6. Step 6: Final answer
    x = 347,239.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.