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Finding the Fourth Proportional to 180,612.91, 249,366.36 and 112,657.15

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Solution

The fourth proportional to 180,612.91, 249,366.36 and 112,657.15 is: 155,542.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,612.91 : 249,366.36 = 112,657.15 : x
  2. Step 2: Convert to fraction form
    180,612.91/249,366.36 = 112,657.15/x
  3. Step 3: Cross multiply
    180,612.91x = 249,366.36 × 112,657.15
  4. Step 4: Simplify right side
    180,612.91x = 28,092,903,423.47
  5. Step 5: Solve for x
    x = 28,092,903,423.47/180,612.91
  6. Step 6: Final answer
    x = 155,542.06

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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.