Home / 423,318.36-634,812.06-153,382.38

Finding the Fourth Proportional to 423,318.36, 634,812.06 and 153,382.38

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Solution

The fourth proportional to 423,318.36, 634,812.06 and 153,382.38 is: 230,013.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,318.36 : 634,812.06 = 153,382.38 : x
  2. Step 2: Convert to fraction form
    423,318.36/634,812.06 = 153,382.38/x
  3. Step 3: Cross multiply
    423,318.36x = 634,812.06 × 153,382.38
  4. Step 4: Simplify right side
    423,318.36x = 97,368,984,615.50
  5. Step 5: Solve for x
    x = 97,368,984,615.50/423,318.36
  6. Step 6: Final answer
    x = 230,013.61

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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.