Home / 326,916.43-490,373.92-87,030.39

Finding the Fourth Proportional to 326,916.43, 490,373.92 and 87,030.39

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Solution

The fourth proportional to 326,916.43, 490,373.92 and 87,030.39 is: 130,545.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,916.43 : 490,373.92 = 87,030.39 : x
  2. Step 2: Convert to fraction form
    326,916.43/490,373.92 = 87,030.39/x
  3. Step 3: Cross multiply
    326,916.43x = 490,373.92 × 87,030.39
  4. Step 4: Simplify right side
    326,916.43x = 42,677,433,503.43
  5. Step 5: Solve for x
    x = 42,677,433,503.43/326,916.43
  6. Step 6: Final answer
    x = 130,545.39

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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.