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Finding the Fourth Proportional to 210,714.71, 290,537.84 and 170,303.51

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Solution

The fourth proportional to 210,714.71, 290,537.84 and 170,303.51 is: 234,818.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,714.71 : 290,537.84 = 170,303.51 : x
  2. Step 2: Convert to fraction form
    210,714.71/290,537.84 = 170,303.51/x
  3. Step 3: Cross multiply
    210,714.71x = 290,537.84 × 170,303.51
  4. Step 4: Simplify right side
    210,714.71x = 49,479,611,635.61
  5. Step 5: Solve for x
    x = 49,479,611,635.61/210,714.71
  6. Step 6: Final answer
    x = 234,818.02

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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.