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Finding the Fourth Proportional to 144,430.80, 216,646.20 and 97,191.60

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Solution

The fourth proportional to 144,430.80, 216,646.20 and 97,191.60 is: 145,787.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,430.80 : 216,646.20 = 97,191.60 : x
  2. Step 2: Convert to fraction form
    144,430.80/216,646.20 = 97,191.60/x
  3. Step 3: Cross multiply
    144,430.80x = 216,646.20 × 97,191.60
  4. Step 4: Simplify right side
    144,430.80x = 21,056,190,811.92
  5. Step 5: Solve for x
    x = 21,056,190,811.92/144,430.80
  6. Step 6: Final answer
    x = 145,787.40

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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.