Home / 208,938.54-288,336.69-113,445.30

Finding the Fourth Proportional to 208,938.54, 288,336.69 and 113,445.30

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Solution

The fourth proportional to 208,938.54, 288,336.69 and 113,445.30 is: 156,555.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,938.54 : 288,336.69 = 113,445.30 : x
  2. Step 2: Convert to fraction form
    208,938.54/288,336.69 = 113,445.30/x
  3. Step 3: Cross multiply
    208,938.54x = 288,336.69 × 113,445.30
  4. Step 4: Simplify right side
    208,938.54x = 32,710,442,298.06
  5. Step 5: Solve for x
    x = 32,710,442,298.06/208,938.54
  6. Step 6: Final answer
    x = 156,555.33

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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.