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Finding the Fourth Proportional to 380,117.25, 569,720.86 and 177,440.67

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Solution

The fourth proportional to 380,117.25, 569,720.86 and 177,440.67 is: 265,948.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,117.25 : 569,720.86 = 177,440.67 : x
  2. Step 2: Convert to fraction form
    380,117.25/569,720.86 = 177,440.67/x
  3. Step 3: Cross multiply
    380,117.25x = 569,720.86 × 177,440.67
  4. Step 4: Simplify right side
    380,117.25x = 101,091,651,111.38
  5. Step 5: Solve for x
    x = 101,091,651,111.38/380,117.25
  6. Step 6: Final answer
    x = 265,948.60

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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.