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Finding the Fourth Proportional to 528,054.40, 792,081.60 and 154,077.40

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Solution

The fourth proportional to 528,054.40, 792,081.60 and 154,077.40 is: 231,116.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,054.40 : 792,081.60 = 154,077.40 : x
  2. Step 2: Convert to fraction form
    528,054.40/792,081.60 = 154,077.40/x
  3. Step 3: Cross multiply
    528,054.40x = 792,081.60 × 154,077.40
  4. Step 4: Simplify right side
    528,054.40x = 122,041,873,515.84
  5. Step 5: Solve for x
    x = 122,041,873,515.84/528,054.40
  6. Step 6: Final answer
    x = 231,116.10

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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.