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Finding the Fourth Proportional to 477,922.96, 659,312.22 and 308,211.76

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Solution

The fourth proportional to 477,922.96, 659,312.22 and 308,211.76 is: 425,189.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,922.96 : 659,312.22 = 308,211.76 : x
  2. Step 2: Convert to fraction form
    477,922.96/659,312.22 = 308,211.76/x
  3. Step 3: Cross multiply
    477,922.96x = 659,312.22 × 308,211.76
  4. Step 4: Simplify right side
    477,922.96x = 203,207,779,715.71
  5. Step 5: Solve for x
    x = 203,207,779,715.71/477,922.96
  6. Step 6: Final answer
    x = 425,189.41

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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.