Home / 190,307.12-285,460.57-177,695.78

Finding the Fourth Proportional to 190,307.12, 285,460.57 and 177,695.78

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Solution

The fourth proportional to 190,307.12, 285,460.57 and 177,695.78 is: 266,543.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,307.12 : 285,460.57 = 177,695.78 : x
  2. Step 2: Convert to fraction form
    190,307.12/285,460.57 = 177,695.78/x
  3. Step 3: Cross multiply
    190,307.12x = 285,460.57 × 177,695.78
  4. Step 4: Simplify right side
    190,307.12x = 50,725,138,914.81
  5. Step 5: Solve for x
    x = 50,725,138,914.81/190,307.12
  6. Step 6: Final answer
    x = 266,543.58

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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.