Home / 423,128.52-634,381.74-201,668.04

Finding the Fourth Proportional to 423,128.52, 634,381.74 and 201,668.04

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Solution

The fourth proportional to 423,128.52, 634,381.74 and 201,668.04 is: 302,353.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,128.52 : 634,381.74 = 201,668.04 : x
  2. Step 2: Convert to fraction form
    423,128.52/634,381.74 = 201,668.04/x
  3. Step 3: Cross multiply
    423,128.52x = 634,381.74 × 201,668.04
  4. Step 4: Simplify right side
    423,128.52x = 127,934,522,117.59
  5. Step 5: Solve for x
    x = 127,934,522,117.59/423,128.52
  6. Step 6: Final answer
    x = 302,353.81

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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.