Home / 402,966.48-556,073.64-221,673.75

Finding the Fourth Proportional to 402,966.48, 556,073.64 and 221,673.75

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Solution

The fourth proportional to 402,966.48, 556,073.64 and 221,673.75 is: 305,898.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,966.48 : 556,073.64 = 221,673.75 : x
  2. Step 2: Convert to fraction form
    402,966.48/556,073.64 = 221,673.75/x
  3. Step 3: Cross multiply
    402,966.48x = 556,073.64 × 221,673.75
  4. Step 4: Simplify right side
    402,966.48x = 123,266,930,250.80
  5. Step 5: Solve for x
    x = 123,266,930,250.80/402,966.48
  6. Step 6: Final answer
    x = 305,898.72

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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.