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Finding the Fourth Proportional to 210,670.67, 290,703.13 and 124,632.88

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Solution

The fourth proportional to 210,670.67, 290,703.13 and 124,632.88 is: 171,980.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,670.67 : 290,703.13 = 124,632.88 : x
  2. Step 2: Convert to fraction form
    210,670.67/290,703.13 = 124,632.88/x
  3. Step 3: Cross multiply
    210,670.67x = 290,703.13 × 124,632.88
  4. Step 4: Simplify right side
    210,670.67x = 36,231,167,278.57
  5. Step 5: Solve for x
    x = 36,231,167,278.57/210,670.67
  6. Step 6: Final answer
    x = 171,980.12

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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.