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Finding the Fourth Proportional to 234,363.78, 350,854.47 and 145,330.74

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Solution

The fourth proportional to 234,363.78, 350,854.47 and 145,330.74 is: 217,567.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,363.78 : 350,854.47 = 145,330.74 : x
  2. Step 2: Convert to fraction form
    234,363.78/350,854.47 = 145,330.74/x
  3. Step 3: Cross multiply
    234,363.78x = 350,854.47 × 145,330.74
  4. Step 4: Simplify right side
    234,363.78x = 50,989,939,757.41
  5. Step 5: Solve for x
    x = 50,989,939,757.41/234,363.78
  6. Step 6: Final answer
    x = 217,567.49

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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.