Home / 205,913.90-308,870.85-159,200.30

Finding the Fourth Proportional to 205,913.90, 308,870.85 and 159,200.30

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Solution

The fourth proportional to 205,913.90, 308,870.85 and 159,200.30 is: 238,800.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,913.90 : 308,870.85 = 159,200.30 : x
  2. Step 2: Convert to fraction form
    205,913.90/308,870.85 = 159,200.30/x
  3. Step 3: Cross multiply
    205,913.90x = 308,870.85 × 159,200.30
  4. Step 4: Simplify right side
    205,913.90x = 49,172,331,981.26
  5. Step 5: Solve for x
    x = 49,172,331,981.26/205,913.90
  6. Step 6: Final answer
    x = 238,800.45

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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.