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Finding the Fourth Proportional to 230,092.12, 317,526.90 and 129,492.28

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Solution

The fourth proportional to 230,092.12, 317,526.90 and 129,492.28 is: 178,699.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,092.12 : 317,526.90 = 129,492.28 : x
  2. Step 2: Convert to fraction form
    230,092.12/317,526.90 = 129,492.28/x
  3. Step 3: Cross multiply
    230,092.12x = 317,526.90 × 129,492.28
  4. Step 4: Simplify right side
    230,092.12x = 41,117,282,242.33
  5. Step 5: Solve for x
    x = 41,117,282,242.33/230,092.12
  6. Step 6: Final answer
    x = 178,699.22

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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.