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Finding the Fourth Proportional to 346,595, 478,302.38 and 187,619

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Solution

The fourth proportional to 346,595, 478,302.38 and 187,619 is: 258,914.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,595 : 478,302.38 = 187,619 : x
  2. Step 2: Convert to fraction form
    346,595/478,302.38 = 187,619/x
  3. Step 3: Cross multiply
    346,595x = 478,302.38 × 187,619
  4. Step 4: Simplify right side
    346,595x = 89,738,614,233.22
  5. Step 5: Solve for x
    x = 89,738,614,233.22/346,595
  6. Step 6: Final answer
    x = 258,914.91

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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.