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Finding the Fourth Proportional to 254,820.60, 382,403.70 and 165,857.40

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Solution

The fourth proportional to 254,820.60, 382,403.70 and 165,857.40 is: 248,898.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,820.60 : 382,403.70 = 165,857.40 : x
  2. Step 2: Convert to fraction form
    254,820.60/382,403.70 = 165,857.40/x
  3. Step 3: Cross multiply
    254,820.60x = 382,403.70 × 165,857.40
  4. Step 4: Simplify right side
    254,820.60x = 63,424,483,432.38
  5. Step 5: Solve for x
    x = 63,424,483,432.38/254,820.60
  6. Step 6: Final answer
    x = 248,898.57

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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.