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Finding the Fourth Proportional to 561,623.60, 842,435.40 and 162,277.40

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Solution

The fourth proportional to 561,623.60, 842,435.40 and 162,277.40 is: 243,416.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,623.60 : 842,435.40 = 162,277.40 : x
  2. Step 2: Convert to fraction form
    561,623.60/842,435.40 = 162,277.40/x
  3. Step 3: Cross multiply
    561,623.60x = 842,435.40 × 162,277.40
  4. Step 4: Simplify right side
    561,623.60x = 136,708,226,379.96
  5. Step 5: Solve for x
    x = 136,708,226,379.96/561,623.60
  6. Step 6: Final answer
    x = 243,416.10

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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.