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Finding the Fourth Proportional to 281,373.55, 388,332.47 and 160,487.12

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Solution

The fourth proportional to 281,373.55, 388,332.47 and 160,487.12 is: 221,493.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,373.55 : 388,332.47 = 160,487.12 : x
  2. Step 2: Convert to fraction form
    281,373.55/388,332.47 = 160,487.12/x
  3. Step 3: Cross multiply
    281,373.55x = 388,332.47 × 160,487.12
  4. Step 4: Simplify right side
    281,373.55x = 62,322,359,712.79
  5. Step 5: Solve for x
    x = 62,322,359,712.79/281,373.55
  6. Step 6: Final answer
    x = 221,493.31

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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.