Home / 278,539.65-384,386.30-163,823.13

Finding the Fourth Proportional to 278,539.65, 384,386.30 and 163,823.13

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Solution

The fourth proportional to 278,539.65, 384,386.30 and 163,823.13 is: 226,076.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,539.65 : 384,386.30 = 163,823.13 : x
  2. Step 2: Convert to fraction form
    278,539.65/384,386.30 = 163,823.13/x
  3. Step 3: Cross multiply
    278,539.65x = 384,386.30 × 163,823.13
  4. Step 4: Simplify right side
    278,539.65x = 62,971,367,417.45
  5. Step 5: Solve for x
    x = 62,971,367,417.45/278,539.65
  6. Step 6: Final answer
    x = 226,076.85

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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.