Home / 278,419.04-384,218.80-165,264.48

Finding the Fourth Proportional to 278,419.04, 384,218.80 and 165,264.48

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Solution

The fourth proportional to 278,419.04, 384,218.80 and 165,264.48 is: 228,065.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,419.04 : 384,218.80 = 165,264.48 : x
  2. Step 2: Convert to fraction form
    278,419.04/384,218.80 = 165,264.48/x
  3. Step 3: Cross multiply
    278,419.04x = 384,218.80 × 165,264.48
  4. Step 4: Simplify right side
    278,419.04x = 63,497,720,188.22
  5. Step 5: Solve for x
    x = 63,497,720,188.22/278,419.04
  6. Step 6: Final answer
    x = 228,065.29

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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.