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Finding the Fourth Proportional to 281,510.79, 388,512.84 and 160,670.34

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Solution

The fourth proportional to 281,510.79, 388,512.84 and 160,670.34 is: 221,741.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,510.79 : 388,512.84 = 160,670.34 : x
  2. Step 2: Convert to fraction form
    281,510.79/388,512.84 = 160,670.34/x
  3. Step 3: Cross multiply
    281,510.79x = 388,512.84 × 160,670.34
  4. Step 4: Simplify right side
    281,510.79x = 62,422,490,097.17
  5. Step 5: Solve for x
    x = 62,422,490,097.17/281,510.79
  6. Step 6: Final answer
    x = 221,741.02

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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.