Home / 256,922.60-385,364.70-107,124.20

Finding the Fourth Proportional to 256,922.60, 385,364.70 and 107,124.20

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Solution

The fourth proportional to 256,922.60, 385,364.70 and 107,124.20 is: 160,678.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,922.60 : 385,364.70 = 107,124.20 : x
  2. Step 2: Convert to fraction form
    256,922.60/385,364.70 = 107,124.20/x
  3. Step 3: Cross multiply
    256,922.60x = 385,364.70 × 107,124.20
  4. Step 4: Simplify right side
    256,922.60x = 41,281,885,195.74
  5. Step 5: Solve for x
    x = 41,281,885,195.74/256,922.60
  6. Step 6: Final answer
    x = 160,678.29

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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.