Home / 278,585.52-384,482.02-163,858.69

Finding the Fourth Proportional to 278,585.52, 384,482.02 and 163,858.69

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Solution

The fourth proportional to 278,585.52, 384,482.02 and 163,858.69 is: 226,144.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,585.52 : 384,482.02 = 163,858.69 : x
  2. Step 2: Convert to fraction form
    278,585.52/384,482.02 = 163,858.69/x
  3. Step 3: Cross multiply
    278,585.52x = 384,482.02 × 163,858.69
  4. Step 4: Simplify right side
    278,585.52x = 63,000,718,754.90
  5. Step 5: Solve for x
    x = 63,000,718,754.90/278,585.52
  6. Step 6: Final answer
    x = 226,144.99

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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.