Home / 397,319.18-548,285.36-216,031.25

Finding the Fourth Proportional to 397,319.18, 548,285.36 and 216,031.25

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Solution

The fourth proportional to 397,319.18, 548,285.36 and 216,031.25 is: 298,114.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,319.18 : 548,285.36 = 216,031.25 : x
  2. Step 2: Convert to fraction form
    397,319.18/548,285.36 = 216,031.25/x
  3. Step 3: Cross multiply
    397,319.18x = 548,285.36 × 216,031.25
  4. Step 4: Simplify right side
    397,319.18x = 118,446,771,677.50
  5. Step 5: Solve for x
    x = 118,446,771,677.50/397,319.18
  6. Step 6: Final answer
    x = 298,114.91

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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.