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Finding the Fourth Proportional to 281,280.77, 388,070.93 and 160,334.81

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Solution

The fourth proportional to 281,280.77, 388,070.93 and 160,334.81 is: 221,207.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,280.77 : 388,070.93 = 160,334.81 : x
  2. Step 2: Convert to fraction form
    281,280.77/388,070.93 = 160,334.81/x
  3. Step 3: Cross multiply
    281,280.77x = 388,070.93 × 160,334.81
  4. Step 4: Simplify right side
    281,280.77x = 62,221,278,743.82
  5. Step 5: Solve for x
    x = 62,221,278,743.82/281,280.77
  6. Step 6: Final answer
    x = 221,207.01

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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.