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Finding the Fourth Proportional to 162,507.40, 243,761.10 and 57,312.70

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Solution

The fourth proportional to 162,507.40, 243,761.10 and 57,312.70 is: 85,969.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,507.40 : 243,761.10 = 57,312.70 : x
  2. Step 2: Convert to fraction form
    162,507.40/243,761.10 = 57,312.70/x
  3. Step 3: Cross multiply
    162,507.40x = 243,761.10 × 57,312.70
  4. Step 4: Simplify right side
    162,507.40x = 13,970,606,795.97
  5. Step 5: Solve for x
    x = 13,970,606,795.97/162,507.40
  6. Step 6: Final answer
    x = 85,969.05

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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.