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Finding the Fourth Proportional to 162,447.80, 243,671.70 and 155,449.40

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Solution

The fourth proportional to 162,447.80, 243,671.70 and 155,449.40 is: 233,174.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,447.80 : 243,671.70 = 155,449.40 : x
  2. Step 2: Convert to fraction form
    162,447.80/243,671.70 = 155,449.40/x
  3. Step 3: Cross multiply
    162,447.80x = 243,671.70 × 155,449.40
  4. Step 4: Simplify right side
    162,447.80x = 37,878,619,561.98
  5. Step 5: Solve for x
    x = 37,878,619,561.98/162,447.80
  6. Step 6: Final answer
    x = 233,174.10

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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.