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Finding the Fourth Proportional to 210,524.68, 290,527.86 and 115,035.40

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Solution

The fourth proportional to 210,524.68, 290,527.86 and 115,035.40 is: 158,750.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,524.68 : 290,527.86 = 115,035.40 : x
  2. Step 2: Convert to fraction form
    210,524.68/290,527.86 = 115,035.40/x
  3. Step 3: Cross multiply
    210,524.68x = 290,527.86 × 115,035.40
  4. Step 4: Simplify right side
    210,524.68x = 33,420,988,586.24
  5. Step 5: Solve for x
    x = 33,420,988,586.24/210,524.68
  6. Step 6: Final answer
    x = 158,750.93

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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.