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Finding the Fourth Proportional to 162,543.40, 243,815.10 and 160,210.60

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Solution

The fourth proportional to 162,543.40, 243,815.10 and 160,210.60 is: 240,315.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,543.40 : 243,815.10 = 160,210.60 : x
  2. Step 2: Convert to fraction form
    162,543.40/243,815.10 = 160,210.60/x
  3. Step 3: Cross multiply
    162,543.40x = 243,815.10 × 160,210.60
  4. Step 4: Simplify right side
    162,543.40x = 39,061,763,460.06
  5. Step 5: Solve for x
    x = 39,061,763,460.06/162,543.40
  6. Step 6: Final answer
    x = 240,315.90

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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.