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Finding the Fourth Proportional to 192,420.95, 288,509.17 and 168,775.98

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Solution

The fourth proportional to 192,420.95, 288,509.17 and 168,775.98 is: 253,056.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,420.95 : 288,509.17 = 168,775.98 : x
  2. Step 2: Convert to fraction form
    192,420.95/288,509.17 = 168,775.98/x
  3. Step 3: Cross multiply
    192,420.95x = 288,509.17 × 168,775.98
  4. Step 4: Simplify right side
    192,420.95x = 48,693,417,905.74
  5. Step 5: Solve for x
    x = 48,693,417,905.74/192,420.95
  6. Step 6: Final answer
    x = 253,056.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.