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Finding the Fourth Proportional to 343,120.80, 473,500.98 and 188,070.60

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Solution

The fourth proportional to 343,120.80, 473,500.98 and 188,070.60 is: 259,534.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,120.80 : 473,500.98 = 188,070.60 : x
  2. Step 2: Convert to fraction form
    343,120.80/473,500.98 = 188,070.60/x
  3. Step 3: Cross multiply
    343,120.80x = 473,500.98 × 188,070.60
  4. Step 4: Simplify right side
    343,120.80x = 89,051,613,409.19
  5. Step 5: Solve for x
    x = 89,051,613,409.19/343,120.80
  6. Step 6: Final answer
    x = 259,534.29

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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.