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Finding the Fourth Proportional to 349,583, 482,235.36 and 288,794.12

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Solution

The fourth proportional to 349,583, 482,235.36 and 288,794.12 is: 398,379.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,583 : 482,235.36 = 288,794.12 : x
  2. Step 2: Convert to fraction form
    349,583/482,235.36 = 288,794.12/x
  3. Step 3: Cross multiply
    349,583x = 482,235.36 × 288,794.12
  4. Step 4: Simplify right side
    349,583x = 139,266,736,424.08
  5. Step 5: Solve for x
    x = 139,266,736,424.08/349,583
  6. Step 6: Final answer
    x = 398,379.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.