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Finding the Fourth Proportional to 162,795.60, 243,869.40 and 143,312.40

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Solution

The fourth proportional to 162,795.60, 243,869.40 and 143,312.40 is: 214,683.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,795.60 : 243,869.40 = 143,312.40 : x
  2. Step 2: Convert to fraction form
    162,795.60/243,869.40 = 143,312.40/x
  3. Step 3: Cross multiply
    162,795.60x = 243,869.40 × 143,312.40
  4. Step 4: Simplify right side
    162,795.60x = 34,949,509,000.56
  5. Step 5: Solve for x
    x = 34,949,509,000.56/162,795.60
  6. Step 6: Final answer
    x = 214,683.38

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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.