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Finding the Fourth Proportional to 371,805.61, 513,099.33 and 202,050.67

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Solution

The fourth proportional to 371,805.61, 513,099.33 and 202,050.67 is: 278,834.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,805.61 : 513,099.33 = 202,050.67 : x
  2. Step 2: Convert to fraction form
    371,805.61/513,099.33 = 202,050.67/x
  3. Step 3: Cross multiply
    371,805.61x = 513,099.33 × 202,050.67
  4. Step 4: Simplify right side
    371,805.61x = 103,672,060,837.55
  5. Step 5: Solve for x
    x = 103,672,060,837.55/371,805.61
  6. Step 6: Final answer
    x = 278,834.05

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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.