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Finding the Fourth Proportional to 281,262.70, 388,095.87 and 160,412.77

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Solution

The fourth proportional to 281,262.70, 388,095.87 and 160,412.77 is: 221,343.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,262.70 : 388,095.87 = 160,412.77 : x
  2. Step 2: Convert to fraction form
    281,262.70/388,095.87 = 160,412.77/x
  3. Step 3: Cross multiply
    281,262.70x = 388,095.87 × 160,412.77
  4. Step 4: Simplify right side
    281,262.70x = 62,255,533,532.26
  5. Step 5: Solve for x
    x = 62,255,533,532.26/281,262.70
  6. Step 6: Final answer
    x = 221,343.01

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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.