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Finding the Fourth Proportional to 270,017, 372,619.62 and 156,903.40

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Solution

The fourth proportional to 270,017, 372,619.62 and 156,903.40 is: 216,524.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,017 : 372,619.62 = 156,903.40 : x
  2. Step 2: Convert to fraction form
    270,017/372,619.62 = 156,903.40/x
  3. Step 3: Cross multiply
    270,017x = 372,619.62 × 156,903.40
  4. Step 4: Simplify right side
    270,017x = 58,465,285,284.71
  5. Step 5: Solve for x
    x = 58,465,285,284.71/270,017
  6. Step 6: Final answer
    x = 216,524.46

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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.