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Finding the Fourth Proportional to 210,577.74, 290,611.32 and 118,719.70

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Solution

The fourth proportional to 210,577.74, 290,611.32 and 118,719.70 is: 163,841.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,577.74 : 290,611.32 = 118,719.70 : x
  2. Step 2: Convert to fraction form
    210,577.74/290,611.32 = 118,719.70/x
  3. Step 3: Cross multiply
    210,577.74x = 290,611.32 × 118,719.70
  4. Step 4: Simplify right side
    210,577.74x = 34,501,288,727.00
  5. Step 5: Solve for x
    x = 34,501,288,727.00/210,577.74
  6. Step 6: Final answer
    x = 163,841.10

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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.