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Finding the Fourth Proportional to 477,421.48, 716,151.66 and 196,912

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Solution

The fourth proportional to 477,421.48, 716,151.66 and 196,912 is: 295,376.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,421.48 : 716,151.66 = 196,912 : x
  2. Step 2: Convert to fraction form
    477,421.48/716,151.66 = 196,912/x
  3. Step 3: Cross multiply
    477,421.48x = 716,151.66 × 196,912
  4. Step 4: Simplify right side
    477,421.48x = 141,018,855,673.92
  5. Step 5: Solve for x
    x = 141,018,855,673.92/477,421.48
  6. Step 6: Final answer
    x = 295,376.02

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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.