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Finding the Fourth Proportional to 180,647.96, 249,274.05 and 100,055.30

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Solution

The fourth proportional to 180,647.96, 249,274.05 and 100,055.30 is: 138,065.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,647.96 : 249,274.05 = 100,055.30 : x
  2. Step 2: Convert to fraction form
    180,647.96/249,274.05 = 100,055.30/x
  3. Step 3: Cross multiply
    180,647.96x = 249,274.05 × 100,055.30
  4. Step 4: Simplify right side
    180,647.96x = 24,941,188,233.39
  5. Step 5: Solve for x
    x = 24,941,188,233.39/180,647.96
  6. Step 6: Final answer
    x = 138,065.16

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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.