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Finding the Fourth Proportional to 210,486.88, 290,477.60 and 114,998.72

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Solution

The fourth proportional to 210,486.88, 290,477.60 and 114,998.72 is: 158,701.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,486.88 : 290,477.60 = 114,998.72 : x
  2. Step 2: Convert to fraction form
    210,486.88/290,477.60 = 114,998.72/x
  3. Step 3: Cross multiply
    210,486.88x = 290,477.60 × 114,998.72
  4. Step 4: Simplify right side
    210,486.88x = 33,404,552,188.67
  5. Step 5: Solve for x
    x = 33,404,552,188.67/210,486.88
  6. Step 6: Final answer
    x = 158,701.35

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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.