Home / 170,438.18-255,285.47-140,520.02

Finding the Fourth Proportional to 170,438.18, 255,285.47 and 140,520.02

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Solution

The fourth proportional to 170,438.18, 255,285.47 and 140,520.02 is: 210,473.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,438.18 : 255,285.47 = 140,520.02 : x
  2. Step 2: Convert to fraction form
    170,438.18/255,285.47 = 140,520.02/x
  3. Step 3: Cross multiply
    170,438.18x = 255,285.47 × 140,520.02
  4. Step 4: Simplify right side
    170,438.18x = 35,872,718,424.98
  5. Step 5: Solve for x
    x = 35,872,718,424.98/170,438.18
  6. Step 6: Final answer
    x = 210,473.50

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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.