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Finding the Fourth Proportional to 162,463.60, 243,492.44 and 78,208.10

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Solution

The fourth proportional to 162,463.60, 243,492.44 and 78,208.10 is: 117,214.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,463.60 : 243,492.44 = 78,208.10 : x
  2. Step 2: Convert to fraction form
    162,463.60/243,492.44 = 78,208.10/x
  3. Step 3: Cross multiply
    162,463.60x = 243,492.44 × 78,208.10
  4. Step 4: Simplify right side
    162,463.60x = 19,043,081,096.76
  5. Step 5: Solve for x
    x = 19,043,081,096.76/162,463.60
  6. Step 6: Final answer
    x = 117,214.45

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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.