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Finding the Fourth Proportional to 281,358.77, 388,272.69 and 152,296.61

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Solution

The fourth proportional to 281,358.77, 388,272.69 and 152,296.61 is: 210,168.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,358.77 : 388,272.69 = 152,296.61 : x
  2. Step 2: Convert to fraction form
    281,358.77/388,272.69 = 152,296.61/x
  3. Step 3: Cross multiply
    281,358.77x = 388,272.69 × 152,296.61
  4. Step 4: Simplify right side
    281,358.77x = 59,132,612,501.22
  5. Step 5: Solve for x
    x = 59,132,612,501.22/281,358.77
  6. Step 6: Final answer
    x = 210,168.01

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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.