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Finding the Fourth Proportional to 259,136.58, 357,486.30 and 151,640.67

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Solution

The fourth proportional to 259,136.58, 357,486.30 and 151,640.67 is: 209,192.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,136.58 : 357,486.30 = 151,640.67 : x
  2. Step 2: Convert to fraction form
    259,136.58/357,486.30 = 151,640.67/x
  3. Step 3: Cross multiply
    259,136.58x = 357,486.30 × 151,640.67
  4. Step 4: Simplify right side
    259,136.58x = 54,209,462,047.82
  5. Step 5: Solve for x
    x = 54,209,462,047.82/259,136.58
  6. Step 6: Final answer
    x = 209,192.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.