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Finding the Fourth Proportional to 179,915.40, 269,354.70 and 109,931.40

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Solution

The fourth proportional to 179,915.40, 269,354.70 and 109,931.40 is: 164,580.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,915.40 : 269,354.70 = 109,931.40 : x
  2. Step 2: Convert to fraction form
    179,915.40/269,354.70 = 109,931.40/x
  3. Step 3: Cross multiply
    179,915.40x = 269,354.70 × 109,931.40
  4. Step 4: Simplify right side
    179,915.40x = 29,610,539,267.58
  5. Step 5: Solve for x
    x = 29,610,539,267.58/179,915.40
  6. Step 6: Final answer
    x = 164,580.35

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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.