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Finding the Fourth Proportional to 180,451.89, 249,018.65 and 102,925.78

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Solution

The fourth proportional to 180,451.89, 249,018.65 and 102,925.78 is: 142,034.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,451.89 : 249,018.65 = 102,925.78 : x
  2. Step 2: Convert to fraction form
    180,451.89/249,018.65 = 102,925.78/x
  3. Step 3: Cross multiply
    180,451.89x = 249,018.65 × 102,925.78
  4. Step 4: Simplify right side
    180,451.89x = 25,630,438,420.56
  5. Step 5: Solve for x
    x = 25,630,438,420.56/180,451.89
  6. Step 6: Final answer
    x = 142,034.75

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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.