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Finding the Fourth Proportional to 172,853.70, 259,280.55 and 162,356.10

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Solution

The fourth proportional to 172,853.70, 259,280.55 and 162,356.10 is: 243,534.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,853.70 : 259,280.55 = 162,356.10 : x
  2. Step 2: Convert to fraction form
    172,853.70/259,280.55 = 162,356.10/x
  3. Step 3: Cross multiply
    172,853.70x = 259,280.55 × 162,356.10
  4. Step 4: Simplify right side
    172,853.70x = 42,095,778,903.86
  5. Step 5: Solve for x
    x = 42,095,778,903.86/172,853.70
  6. Step 6: Final answer
    x = 243,534.15

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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.