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Finding the Fourth Proportional to 162,386.10, 243,579.15 and 103,482.90

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Solution

The fourth proportional to 162,386.10, 243,579.15 and 103,482.90 is: 155,224.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,386.10 : 243,579.15 = 103,482.90 : x
  2. Step 2: Convert to fraction form
    162,386.10/243,579.15 = 103,482.90/x
  3. Step 3: Cross multiply
    162,386.10x = 243,579.15 × 103,482.90
  4. Step 4: Simplify right side
    162,386.10x = 25,206,276,821.54
  5. Step 5: Solve for x
    x = 25,206,276,821.54/162,386.10
  6. Step 6: Final answer
    x = 155,224.35

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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.