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Finding the Fourth Proportional to 445,689.52, 615,095.72 and 254,730.32

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Solution

The fourth proportional to 445,689.52, 615,095.72 and 254,730.32 is: 351,553.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,689.52 : 615,095.72 = 254,730.32 : x
  2. Step 2: Convert to fraction form
    445,689.52/615,095.72 = 254,730.32/x
  3. Step 3: Cross multiply
    445,689.52x = 615,095.72 × 254,730.32
  4. Step 4: Simplify right side
    445,689.52x = 156,683,529,586.23
  5. Step 5: Solve for x
    x = 156,683,529,586.23/445,689.52
  6. Step 6: Final answer
    x = 351,553.09

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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.