Home / 308,070.50-425,121.98-172,077.34

Finding the Fourth Proportional to 308,070.50, 425,121.98 and 172,077.34

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Solution

The fourth proportional to 308,070.50, 425,121.98 and 172,077.34 is: 237,458.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,070.50 : 425,121.98 = 172,077.34 : x
  2. Step 2: Convert to fraction form
    308,070.50/425,121.98 = 172,077.34/x
  3. Step 3: Cross multiply
    308,070.50x = 425,121.98 × 172,077.34
  4. Step 4: Simplify right side
    308,070.50x = 73,153,859,493.93
  5. Step 5: Solve for x
    x = 73,153,859,493.93/308,070.50
  6. Step 6: Final answer
    x = 237,458.18

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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.