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Finding the Fourth Proportional to 171,285.23, 256,552.72 and 86,900.45

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Solution

The fourth proportional to 171,285.23, 256,552.72 and 86,900.45 is: 130,160.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,285.23 : 256,552.72 = 86,900.45 : x
  2. Step 2: Convert to fraction form
    171,285.23/256,552.72 = 86,900.45/x
  3. Step 3: Cross multiply
    171,285.23x = 256,552.72 × 86,900.45
  4. Step 4: Simplify right side
    171,285.23x = 22,294,545,316.71
  5. Step 5: Solve for x
    x = 22,294,545,316.71/171,285.23
  6. Step 6: Final answer
    x = 130,160.35

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1.5x scale

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.