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Finding the Fourth Proportional to 235,430.40, 352,684.80 and 141,657.60

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Solution

The fourth proportional to 235,430.40, 352,684.80 and 141,657.60 is: 212,209.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,430.40 : 352,684.80 = 141,657.60 : x
  2. Step 2: Convert to fraction form
    235,430.40/352,684.80 = 141,657.60/x
  3. Step 3: Cross multiply
    235,430.40x = 352,684.80 × 141,657.60
  4. Step 4: Simplify right side
    235,430.40x = 49,960,482,324.48
  5. Step 5: Solve for x
    x = 49,960,482,324.48/235,430.40
  6. Step 6: Final answer
    x = 212,209.14

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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.