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Finding the Fourth Proportional to 210,713.10, 290,760.21 and 124,674.72

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Solution

The fourth proportional to 210,713.10, 290,760.21 and 124,674.72 is: 172,036.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,713.10 : 290,760.21 = 124,674.72 : x
  2. Step 2: Convert to fraction form
    210,713.10/290,760.21 = 124,674.72/x
  3. Step 3: Cross multiply
    210,713.10x = 290,760.21 × 124,674.72
  4. Step 4: Simplify right side
    210,713.10x = 36,250,447,768.89
  5. Step 5: Solve for x
    x = 36,250,447,768.89/210,713.10
  6. Step 6: Final answer
    x = 172,036.99

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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.