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Finding the Fourth Proportional to 369,319.60, 553,979.40 and 303,709.60

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Solution

The fourth proportional to 369,319.60, 553,979.40 and 303,709.60 is: 455,564.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,319.60 : 553,979.40 = 303,709.60 : x
  2. Step 2: Convert to fraction form
    369,319.60/553,979.40 = 303,709.60/x
  3. Step 3: Cross multiply
    369,319.60x = 553,979.40 × 303,709.60
  4. Step 4: Simplify right side
    369,319.60x = 168,248,861,982.24
  5. Step 5: Solve for x
    x = 168,248,861,982.24/369,319.60
  6. Step 6: Final answer
    x = 455,564.40

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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.