Home / 431,159.84-646,582.08-164,788.64

Finding the Fourth Proportional to 431,159.84, 646,582.08 and 164,788.64

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Solution

The fourth proportional to 431,159.84, 646,582.08 and 164,788.64 is: 247,122.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,159.84 : 646,582.08 = 164,788.64 : x
  2. Step 2: Convert to fraction form
    431,159.84/646,582.08 = 164,788.64/x
  3. Step 3: Cross multiply
    431,159.84x = 646,582.08 × 164,788.64
  4. Step 4: Simplify right side
    431,159.84x = 106,549,381,611.57
  5. Step 5: Solve for x
    x = 106,549,381,611.57/431,159.84
  6. Step 6: Final answer
    x = 247,122.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.