Home / 329,143.08-454,068.42-288,732.18

Finding the Fourth Proportional to 329,143.08, 454,068.42 and 288,732.18

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Solution

The fourth proportional to 329,143.08, 454,068.42 and 288,732.18 is: 398,319.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,143.08 : 454,068.42 = 288,732.18 : x
  2. Step 2: Convert to fraction form
    329,143.08/454,068.42 = 288,732.18/x
  3. Step 3: Cross multiply
    329,143.08x = 454,068.42 × 288,732.18
  4. Step 4: Simplify right side
    329,143.08x = 131,104,164,775.76
  5. Step 5: Solve for x
    x = 131,104,164,775.76/329,143.08
  6. Step 6: Final answer
    x = 398,319.68

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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.