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Finding the Fourth Proportional to 254,885.40, 382,326.75 and 65,345.40

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Solution

The fourth proportional to 254,885.40, 382,326.75 and 65,345.40 is: 98,017.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,885.40 : 382,326.75 = 65,345.40 : x
  2. Step 2: Convert to fraction form
    254,885.40/382,326.75 = 65,345.40/x
  3. Step 3: Cross multiply
    254,885.40x = 382,326.75 × 65,345.40
  4. Step 4: Simplify right side
    254,885.40x = 24,983,294,409.45
  5. Step 5: Solve for x
    x = 24,983,294,409.45/254,885.40
  6. Step 6: Final answer
    x = 98,017.75

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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.