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Finding the Fourth Proportional to 355,222.10, 532,833.15 and 256,078.10

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Solution

The fourth proportional to 355,222.10, 532,833.15 and 256,078.10 is: 384,117.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,222.10 : 532,833.15 = 256,078.10 : x
  2. Step 2: Convert to fraction form
    355,222.10/532,833.15 = 256,078.10/x
  3. Step 3: Cross multiply
    355,222.10x = 532,833.15 × 256,078.10
  4. Step 4: Simplify right side
    355,222.10x = 136,446,900,669.02
  5. Step 5: Solve for x
    x = 136,446,900,669.02/355,222.10
  6. Step 6: Final answer
    x = 384,117.15

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1.5x scale

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.