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Finding the Fourth Proportional to 256,110.90, 384,166.35 and 89,898.90

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Solution

The fourth proportional to 256,110.90, 384,166.35 and 89,898.90 is: 134,848.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,110.90 : 384,166.35 = 89,898.90 : x
  2. Step 2: Convert to fraction form
    256,110.90/384,166.35 = 89,898.90/x
  3. Step 3: Cross multiply
    256,110.90x = 384,166.35 × 89,898.90
  4. Step 4: Simplify right side
    256,110.90x = 34,536,132,282.02
  5. Step 5: Solve for x
    x = 34,536,132,282.02/256,110.90
  6. Step 6: Final answer
    x = 134,848.35

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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.