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Finding the Fourth Proportional to 545,916.40, 818,728.80 and 166,836.40

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Solution

The fourth proportional to 545,916.40, 818,728.80 and 166,836.40 is: 250,210.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,916.40 : 818,728.80 = 166,836.40 : x
  2. Step 2: Convert to fraction form
    545,916.40/818,728.80 = 166,836.40/x
  3. Step 3: Cross multiply
    545,916.40x = 818,728.80 × 166,836.40
  4. Step 4: Simplify right side
    545,916.40x = 136,593,765,568.32
  5. Step 5: Solve for x
    x = 136,593,765,568.32/545,916.40
  6. Step 6: Final answer
    x = 250,210.04

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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.