Home / 386,203.08-532,981.30-216,491.72

Finding the Fourth Proportional to 386,203.08, 532,981.30 and 216,491.72

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Solution

The fourth proportional to 386,203.08, 532,981.30 and 216,491.72 is: 298,770.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,203.08 : 532,981.30 = 216,491.72 : x
  2. Step 2: Convert to fraction form
    386,203.08/532,981.30 = 216,491.72/x
  3. Step 3: Cross multiply
    386,203.08x = 532,981.30 × 216,491.72
  4. Step 4: Simplify right side
    386,203.08x = 115,386,038,364.84
  5. Step 5: Solve for x
    x = 115,386,038,364.84/386,203.08
  6. Step 6: Final answer
    x = 298,770.37

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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.