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Finding the Fourth Proportional to 183,416.40, 275,124.60 and 120,430.80

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Solution

The fourth proportional to 183,416.40, 275,124.60 and 120,430.80 is: 180,646.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,416.40 : 275,124.60 = 120,430.80 : x
  2. Step 2: Convert to fraction form
    183,416.40/275,124.60 = 120,430.80/x
  3. Step 3: Cross multiply
    183,416.40x = 275,124.60 × 120,430.80
  4. Step 4: Simplify right side
    183,416.40x = 33,133,475,677.68
  5. Step 5: Solve for x
    x = 33,133,475,677.68/183,416.40
  6. Step 6: Final answer
    x = 180,646.20

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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.