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Finding the Fourth Proportional to 479,945.40, 719,918.10 and 164,361.30

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Solution

The fourth proportional to 479,945.40, 719,918.10 and 164,361.30 is: 246,541.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,945.40 : 719,918.10 = 164,361.30 : x
  2. Step 2: Convert to fraction form
    479,945.40/719,918.10 = 164,361.30/x
  3. Step 3: Cross multiply
    479,945.40x = 719,918.10 × 164,361.30
  4. Step 4: Simplify right side
    479,945.40x = 118,326,674,809.53
  5. Step 5: Solve for x
    x = 118,326,674,809.53/479,945.40
  6. Step 6: Final answer
    x = 246,541.95

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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.