Home / 369,815.40-553,319.10-245,399.40

Finding the Fourth Proportional to 369,815.40, 553,319.10 and 245,399.40

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Solution

The fourth proportional to 369,815.40, 553,319.10 and 245,399.40 is: 367,167.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,815.40 : 553,319.10 = 245,399.40 : x
  2. Step 2: Convert to fraction form
    369,815.40/553,319.10 = 245,399.40/x
  3. Step 3: Cross multiply
    369,815.40x = 553,319.10 × 245,399.40
  4. Step 4: Simplify right side
    369,815.40x = 135,784,175,148.54
  5. Step 5: Solve for x
    x = 135,784,175,148.54/369,815.40
  6. Step 6: Final answer
    x = 367,167.44

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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.