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Finding the Fourth Proportional to 400,054.40, 600,081.60 and 242,590.40

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Solution

The fourth proportional to 400,054.40, 600,081.60 and 242,590.40 is: 363,885.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,054.40 : 600,081.60 = 242,590.40 : x
  2. Step 2: Convert to fraction form
    400,054.40/600,081.60 = 242,590.40/x
  3. Step 3: Cross multiply
    400,054.40x = 600,081.60 × 242,590.40
  4. Step 4: Simplify right side
    400,054.40x = 145,574,035,376.64
  5. Step 5: Solve for x
    x = 145,574,035,376.64/400,054.40
  6. Step 6: Final answer
    x = 363,885.60

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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.