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Finding the Fourth Proportional to 180,980.40, 249,753.12 and 105,543.48

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Solution

The fourth proportional to 180,980.40, 249,753.12 and 105,543.48 is: 145,650.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,980.40 : 249,753.12 = 105,543.48 : x
  2. Step 2: Convert to fraction form
    180,980.40/249,753.12 = 105,543.48/x
  3. Step 3: Cross multiply
    180,980.40x = 249,753.12 × 105,543.48
  4. Step 4: Simplify right side
    180,980.40x = 26,359,813,425.66
  5. Step 5: Solve for x
    x = 26,359,813,425.66/180,980.40
  6. Step 6: Final answer
    x = 145,650.10

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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.