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Finding the Fourth Proportional to 250,953.28, 346,304.64 and 137,777.92

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Solution

The fourth proportional to 250,953.28, 346,304.64 and 137,777.92 is: 190,127.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,953.28 : 346,304.64 = 137,777.92 : x
  2. Step 2: Convert to fraction form
    250,953.28/346,304.64 = 137,777.92/x
  3. Step 3: Cross multiply
    250,953.28x = 346,304.64 × 137,777.92
  4. Step 4: Simplify right side
    250,953.28x = 47,713,132,985.55
  5. Step 5: Solve for x
    x = 47,713,132,985.55/250,953.28
  6. Step 6: Final answer
    x = 190,127.55

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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.