Home / 210,200.84-290,116.58-131,655.08

Finding the Fourth Proportional to 210,200.84, 290,116.58 and 131,655.08

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Solution

The fourth proportional to 210,200.84, 290,116.58 and 131,655.08 is: 181,708.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,200.84 : 290,116.58 = 131,655.08 : x
  2. Step 2: Convert to fraction form
    210,200.84/290,116.58 = 131,655.08/x
  3. Step 3: Cross multiply
    210,200.84x = 290,116.58 × 131,655.08
  4. Step 4: Simplify right side
    210,200.84x = 38,195,319,440.37
  5. Step 5: Solve for x
    x = 38,195,319,440.37/210,200.84
  6. Step 6: Final answer
    x = 181,708.70

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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.