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Finding the Fourth Proportional to 282,054.40, 423,081.60 and 268,230.40

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Solution

The fourth proportional to 282,054.40, 423,081.60 and 268,230.40 is: 402,345.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,054.40 : 423,081.60 = 268,230.40 : x
  2. Step 2: Convert to fraction form
    282,054.40/423,081.60 = 268,230.40/x
  3. Step 3: Cross multiply
    282,054.40x = 423,081.60 × 268,230.40
  4. Step 4: Simplify right side
    282,054.40x = 113,483,346,800.64
  5. Step 5: Solve for x
    x = 113,483,346,800.64/282,054.40
  6. Step 6: Final answer
    x = 402,345.60

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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.