Home / 389,270.25-537,208.57-217,203.24

Finding the Fourth Proportional to 389,270.25, 537,208.57 and 217,203.24

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Solution

The fourth proportional to 389,270.25, 537,208.57 and 217,203.24 is: 299,749.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,270.25 : 537,208.57 = 217,203.24 : x
  2. Step 2: Convert to fraction form
    389,270.25/537,208.57 = 217,203.24/x
  3. Step 3: Cross multiply
    389,270.25x = 537,208.57 × 217,203.24
  4. Step 4: Simplify right side
    389,270.25x = 116,683,441,959.77
  5. Step 5: Solve for x
    x = 116,683,441,959.77/389,270.25
  6. Step 6: Final answer
    x = 299,749.19

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1.5x scale

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.