Home / 278,726.31-384,430.39-192,828.24

Finding the Fourth Proportional to 278,726.31, 384,430.39 and 192,828.24

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Solution

The fourth proportional to 278,726.31, 384,430.39 and 192,828.24 is: 265,956.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,726.31 : 384,430.39 = 192,828.24 : x
  2. Step 2: Convert to fraction form
    278,726.31/384,430.39 = 192,828.24/x
  3. Step 3: Cross multiply
    278,726.31x = 384,430.39 × 192,828.24
  4. Step 4: Simplify right side
    278,726.31x = 74,129,035,024.14
  5. Step 5: Solve for x
    x = 74,129,035,024.14/278,726.31
  6. Step 6: Final answer
    x = 265,956.36

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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.