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Finding the Fourth Proportional to 426,155, 588,093.36 and 235,168.40

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Solution

The fourth proportional to 426,155, 588,093.36 and 235,168.40 is: 324,532.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,155 : 588,093.36 = 235,168.40 : x
  2. Step 2: Convert to fraction form
    426,155/588,093.36 = 235,168.40/x
  3. Step 3: Cross multiply
    426,155x = 588,093.36 × 235,168.40
  4. Step 4: Simplify right side
    426,155x = 138,300,974,521.82
  5. Step 5: Solve for x
    x = 138,300,974,521.82/426,155
  6. Step 6: Final answer
    x = 324,532.09

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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.