Home / 389,329.58-537,259.73-217,238.60

Finding the Fourth Proportional to 389,329.58, 537,259.73 and 217,238.60

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Solution

The fourth proportional to 389,329.58, 537,259.73 and 217,238.60 is: 299,780.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,329.58 : 537,259.73 = 217,238.60 : x
  2. Step 2: Convert to fraction form
    389,329.58/537,259.73 = 217,238.60/x
  3. Step 3: Cross multiply
    389,329.58x = 537,259.73 × 217,238.60
  4. Step 4: Simplify right side
    389,329.58x = 116,713,547,809.09
  5. Step 5: Solve for x
    x = 116,713,547,809.09/389,329.58
  6. Step 6: Final answer
    x = 299,780.84

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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.