Home / 454,639.40-681,894.30-155,133.80

Finding the Fourth Proportional to 454,639.40, 681,894.30 and 155,133.80

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Solution

The fourth proportional to 454,639.40, 681,894.30 and 155,133.80 is: 232,678.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,639.40 : 681,894.30 = 155,133.80 : x
  2. Step 2: Convert to fraction form
    454,639.40/681,894.30 = 155,133.80/x
  3. Step 3: Cross multiply
    454,639.40x = 681,894.30 × 155,133.80
  4. Step 4: Simplify right side
    454,639.40x = 105,784,853,957.34
  5. Step 5: Solve for x
    x = 105,784,853,957.34/454,639.40
  6. Step 6: Final answer
    x = 232,678.59

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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.