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Finding the Fourth Proportional to 170,285.98, 234,966.50 and 103,217.98

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Solution

The fourth proportional to 170,285.98, 234,966.50 and 103,217.98 is: 142,423.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,285.98 : 234,966.50 = 103,217.98 : x
  2. Step 2: Convert to fraction form
    170,285.98/234,966.50 = 103,217.98/x
  3. Step 3: Cross multiply
    170,285.98x = 234,966.50 × 103,217.98
  4. Step 4: Simplify right side
    170,285.98x = 24,252,767,497.67
  5. Step 5: Solve for x
    x = 24,252,767,497.67/170,285.98
  6. Step 6: Final answer
    x = 142,423.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.