Home / 209,750.18-314,503.76-143,270.64

Finding the Fourth Proportional to 209,750.18, 314,503.76 and 143,270.64

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Solution

The fourth proportional to 209,750.18, 314,503.76 and 143,270.64 is: 214,822.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,750.18 : 314,503.76 = 143,270.64 : x
  2. Step 2: Convert to fraction form
    209,750.18/314,503.76 = 143,270.64/x
  3. Step 3: Cross multiply
    209,750.18x = 314,503.76 × 143,270.64
  4. Step 4: Simplify right side
    209,750.18x = 45,059,154,977.61
  5. Step 5: Solve for x
    x = 45,059,154,977.61/209,750.18
  6. Step 6: Final answer
    x = 214,822.96

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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.