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Finding the Fourth Proportional to 180,490.44, 249,073.68 and 99,916.20

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Solution

The fourth proportional to 180,490.44, 249,073.68 and 99,916.20 is: 137,882.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,490.44 : 249,073.68 = 99,916.20 : x
  2. Step 2: Convert to fraction form
    180,490.44/249,073.68 = 99,916.20/x
  3. Step 3: Cross multiply
    180,490.44x = 249,073.68 × 99,916.20
  4. Step 4: Simplify right side
    180,490.44x = 24,886,495,625.62
  5. Step 5: Solve for x
    x = 24,886,495,625.62/180,490.44
  6. Step 6: Final answer
    x = 137,882.62

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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.