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Finding the Fourth Proportional to 208,308.60, 287,287.02 and 162,916.20

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Solution

The fourth proportional to 208,308.60, 287,287.02 and 162,916.20 is: 224,684.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,308.60 : 287,287.02 = 162,916.20 : x
  2. Step 2: Convert to fraction form
    208,308.60/287,287.02 = 162,916.20/x
  3. Step 3: Cross multiply
    208,308.60x = 287,287.02 × 162,916.20
  4. Step 4: Simplify right side
    208,308.60x = 46,803,709,607.72
  5. Step 5: Solve for x
    x = 46,803,709,607.72/208,308.60
  6. Step 6: Final answer
    x = 224,684.48

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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.