Home / 353,058.34-487,291.25-209,790.67

Finding the Fourth Proportional to 353,058.34, 487,291.25 and 209,790.67

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Solution

The fourth proportional to 353,058.34, 487,291.25 and 209,790.67 is: 289,553.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,058.34 : 487,291.25 = 209,790.67 : x
  2. Step 2: Convert to fraction form
    353,058.34/487,291.25 = 209,790.67/x
  3. Step 3: Cross multiply
    353,058.34x = 487,291.25 × 209,790.67
  4. Step 4: Simplify right side
    353,058.34x = 102,229,154,337.23
  5. Step 5: Solve for x
    x = 102,229,154,337.23/353,058.34
  6. Step 6: Final answer
    x = 289,553.15

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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.