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Finding the Fourth Proportional to 335,220.40, 502,441.80 and 135,409.60

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Solution

The fourth proportional to 335,220.40, 502,441.80 and 135,409.60 is: 202,957.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,220.40 : 502,441.80 = 135,409.60 : x
  2. Step 2: Convert to fraction form
    335,220.40/502,441.80 = 135,409.60/x
  3. Step 3: Cross multiply
    335,220.40x = 502,441.80 × 135,409.60
  4. Step 4: Simplify right side
    335,220.40x = 68,035,443,161.28
  5. Step 5: Solve for x
    x = 68,035,443,161.28/335,220.40
  6. Step 6: Final answer
    x = 202,957.35

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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.