Home / 287,823.30-431,346.15-192,783.30

Finding the Fourth Proportional to 287,823.30, 431,346.15 and 192,783.30

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Solution

The fourth proportional to 287,823.30, 431,346.15 and 192,783.30 is: 288,914.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,823.30 : 431,346.15 = 192,783.30 : x
  2. Step 2: Convert to fraction form
    287,823.30/431,346.15 = 192,783.30/x
  3. Step 3: Cross multiply
    287,823.30x = 431,346.15 × 192,783.30
  4. Step 4: Simplify right side
    287,823.30x = 83,156,334,239.30
  5. Step 5: Solve for x
    x = 83,156,334,239.30/287,823.30
  6. Step 6: Final answer
    x = 288,914.53

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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.