Home / 402,020.70-555,048.18-249,222.18

Finding the Fourth Proportional to 402,020.70, 555,048.18 and 249,222.18

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Solution

The fourth proportional to 402,020.70, 555,048.18 and 249,222.18 is: 344,087.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,020.70 : 555,048.18 = 249,222.18 : x
  2. Step 2: Convert to fraction form
    402,020.70/555,048.18 = 249,222.18/x
  3. Step 3: Cross multiply
    402,020.70x = 555,048.18 × 249,222.18
  4. Step 4: Simplify right side
    402,020.70x = 138,330,317,424.63
  5. Step 5: Solve for x
    x = 138,330,317,424.63/402,020.70
  6. Step 6: Final answer
    x = 344,087.55

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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.