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Finding the Fourth Proportional to 180,825.72, 249,468.30 and 112,803

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Solution

The fourth proportional to 180,825.72, 249,468.30 and 112,803 is: 155,623.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,825.72 : 249,468.30 = 112,803 : x
  2. Step 2: Convert to fraction form
    180,825.72/249,468.30 = 112,803/x
  3. Step 3: Cross multiply
    180,825.72x = 249,468.30 × 112,803
  4. Step 4: Simplify right side
    180,825.72x = 28,140,772,644.90
  5. Step 5: Solve for x
    x = 28,140,772,644.90/180,825.72
  6. Step 6: Final answer
    x = 155,623.73

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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.