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Finding the Fourth Proportional to 355,604.82, 532,845.45 and 288,718.16

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Solution

The fourth proportional to 355,604.82, 532,845.45 and 288,718.16 is: 432,621.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,604.82 : 532,845.45 = 288,718.16 : x
  2. Step 2: Convert to fraction form
    355,604.82/532,845.45 = 288,718.16/x
  3. Step 3: Cross multiply
    355,604.82x = 532,845.45 × 288,718.16
  4. Step 4: Simplify right side
    355,604.82x = 153,842,156,444.78
  5. Step 5: Solve for x
    x = 153,842,156,444.78/355,604.82
  6. Step 6: Final answer
    x = 432,621.12

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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.