Home / 329,965.83-455,117.61-302,829.39

Finding the Fourth Proportional to 329,965.83, 455,117.61 and 302,829.39

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Solution

The fourth proportional to 329,965.83, 455,117.61 and 302,829.39 is: 417,688.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,965.83 : 455,117.61 = 302,829.39 : x
  2. Step 2: Convert to fraction form
    329,965.83/455,117.61 = 302,829.39/x
  3. Step 3: Cross multiply
    329,965.83x = 455,117.61 × 302,829.39
  4. Step 4: Simplify right side
    329,965.83x = 137,822,988,214.56
  5. Step 5: Solve for x
    x = 137,822,988,214.56/329,965.83
  6. Step 6: Final answer
    x = 417,688.67

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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.