Home / 355,117.60-531,985.20-214,458.40

Finding the Fourth Proportional to 355,117.60, 531,985.20 and 214,458.40

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Solution

The fourth proportional to 355,117.60, 531,985.20 and 214,458.40 is: 321,270.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,117.60 : 531,985.20 = 214,458.40 : x
  2. Step 2: Convert to fraction form
    355,117.60/531,985.20 = 214,458.40/x
  3. Step 3: Cross multiply
    355,117.60x = 531,985.20 × 214,458.40
  4. Step 4: Simplify right side
    355,117.60x = 114,088,694,815.68
  5. Step 5: Solve for x
    x = 114,088,694,815.68/355,117.60
  6. Step 6: Final answer
    x = 321,270.18

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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.