Home / 423,100.23-634,743.78-156,860.75

Finding the Fourth Proportional to 423,100.23, 634,743.78 and 156,860.75

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Solution

The fourth proportional to 423,100.23, 634,743.78 and 156,860.75 is: 235,325.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,100.23 : 634,743.78 = 156,860.75 : x
  2. Step 2: Convert to fraction form
    423,100.23/634,743.78 = 156,860.75/x
  3. Step 3: Cross multiply
    423,100.23x = 634,743.78 × 156,860.75
  4. Step 4: Simplify right side
    423,100.23x = 99,566,386,387.27
  5. Step 5: Solve for x
    x = 99,566,386,387.27/423,100.23
  6. Step 6: Final answer
    x = 235,325.77

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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.