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Finding the Fourth Proportional to 210,357.80, 290,305.58 and 114,873.40

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Solution

The fourth proportional to 210,357.80, 290,305.58 and 114,873.40 is: 158,531.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,357.80 : 290,305.58 = 114,873.40 : x
  2. Step 2: Convert to fraction form
    210,357.80/290,305.58 = 114,873.40/x
  3. Step 3: Cross multiply
    210,357.80x = 290,305.58 × 114,873.40
  4. Step 4: Simplify right side
    210,357.80x = 33,348,389,013.57
  5. Step 5: Solve for x
    x = 33,348,389,013.57/210,357.80
  6. Step 6: Final answer
    x = 158,531.74

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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.