Home / 278,673.10-384,569.61-163,956.06

Finding the Fourth Proportional to 278,673.10, 384,569.61 and 163,956.06

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Solution

The fourth proportional to 278,673.10, 384,569.61 and 163,956.06 is: 226,259.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,673.10 : 384,569.61 = 163,956.06 : x
  2. Step 2: Convert to fraction form
    278,673.10/384,569.61 = 163,956.06/x
  3. Step 3: Cross multiply
    278,673.10x = 384,569.61 × 163,956.06
  4. Step 4: Simplify right side
    278,673.10x = 63,052,518,051.34
  5. Step 5: Solve for x
    x = 63,052,518,051.34/278,673.10
  6. Step 6: Final answer
    x = 226,259.79

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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.