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Finding the Fourth Proportional to 259,038.78, 357,479.52 and 144,325.04

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Solution

The fourth proportional to 259,038.78, 357,479.52 and 144,325.04 is: 199,171.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,038.78 : 357,479.52 = 144,325.04 : x
  2. Step 2: Convert to fraction form
    259,038.78/357,479.52 = 144,325.04/x
  3. Step 3: Cross multiply
    259,038.78x = 357,479.52 × 144,325.04
  4. Step 4: Simplify right side
    259,038.78x = 51,593,246,023.18
  5. Step 5: Solve for x
    x = 51,593,246,023.18/259,038.78
  6. Step 6: Final answer
    x = 199,171.90

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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.