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Finding the Fourth Proportional to 253,637.46, 350,019.77 and 140,460.21

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Solution

The fourth proportional to 253,637.46, 350,019.77 and 140,460.21 is: 193,835.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,637.46 : 350,019.77 = 140,460.21 : x
  2. Step 2: Convert to fraction form
    253,637.46/350,019.77 = 140,460.21/x
  3. Step 3: Cross multiply
    253,637.46x = 350,019.77 × 140,460.21
  4. Step 4: Simplify right side
    253,637.46x = 49,163,849,696.05
  5. Step 5: Solve for x
    x = 49,163,849,696.05/253,637.46
  6. Step 6: Final answer
    x = 193,835.13

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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.