Home / 308,868.47-426,247.40-172,901.62

Finding the Fourth Proportional to 308,868.47, 426,247.40 and 172,901.62

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Solution

The fourth proportional to 308,868.47, 426,247.40 and 172,901.62 is: 238,609.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,868.47 : 426,247.40 = 172,901.62 : x
  2. Step 2: Convert to fraction form
    308,868.47/426,247.40 = 172,901.62/x
  3. Step 3: Cross multiply
    308,868.47x = 426,247.40 × 172,901.62
  4. Step 4: Simplify right side
    308,868.47x = 73,698,865,973.28
  5. Step 5: Solve for x
    x = 73,698,865,973.28/308,868.47
  6. Step 6: Final answer
    x = 238,609.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.