Home / 307,637.70-461,456.55-213,159.30

Finding the Fourth Proportional to 307,637.70, 461,456.55 and 213,159.30

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Solution

The fourth proportional to 307,637.70, 461,456.55 and 213,159.30 is: 319,738.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,637.70 : 461,456.55 = 213,159.30 : x
  2. Step 2: Convert to fraction form
    307,637.70/461,456.55 = 213,159.30/x
  3. Step 3: Cross multiply
    307,637.70x = 461,456.55 × 213,159.30
  4. Step 4: Simplify right side
    307,637.70x = 98,363,755,178.42
  5. Step 5: Solve for x
    x = 98,363,755,178.42/307,637.70
  6. Step 6: Final answer
    x = 319,738.95

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1.5x scale

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.