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Finding the Fourth Proportional to 182,969.40, 274,454.10 and 112,985.40

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Solution

The fourth proportional to 182,969.40, 274,454.10 and 112,985.40 is: 169,478.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,969.40 : 274,454.10 = 112,985.40 : x
  2. Step 2: Convert to fraction form
    182,969.40/274,454.10 = 112,985.40/x
  3. Step 3: Cross multiply
    182,969.40x = 274,454.10 × 112,985.40
  4. Step 4: Simplify right side
    182,969.40x = 31,009,306,270.14
  5. Step 5: Solve for x
    x = 31,009,306,270.14/182,969.40
  6. Step 6: Final answer
    x = 169,478.10

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1.5x scale

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.