Home / 402,021.70-555,049.56-249,223.18

Finding the Fourth Proportional to 402,021.70, 555,049.56 and 249,223.18

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Solution

The fourth proportional to 402,021.70, 555,049.56 and 249,223.18 is: 344,088.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,021.70 : 555,049.56 = 249,223.18 : x
  2. Step 2: Convert to fraction form
    402,021.70/555,049.56 = 249,223.18/x
  3. Step 3: Cross multiply
    402,021.70x = 555,049.56 × 249,223.18
  4. Step 4: Simplify right side
    402,021.70x = 138,331,216,400.80
  5. Step 5: Solve for x
    x = 138,331,216,400.80/402,021.70
  6. Step 6: Final answer
    x = 344,088.93

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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.