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Finding the Fourth Proportional to 354,400.60, 530,726.10 and 235,427.80

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Solution

The fourth proportional to 354,400.60, 530,726.10 and 235,427.80 is: 352,560.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,400.60 : 530,726.10 = 235,427.80 : x
  2. Step 2: Convert to fraction form
    354,400.60/530,726.10 = 235,427.80/x
  3. Step 3: Cross multiply
    354,400.60x = 530,726.10 × 235,427.80
  4. Step 4: Simplify right side
    354,400.60x = 124,947,678,125.58
  5. Step 5: Solve for x
    x = 124,947,678,125.58/354,400.60
  6. Step 6: Final answer
    x = 352,560.57

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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.