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Finding the Fourth Proportional to 383,335.33, 528,643.95 and 302,954.89

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Solution

The fourth proportional to 383,335.33, 528,643.95 and 302,954.89 is: 417,794.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,335.33 : 528,643.95 = 302,954.89 : x
  2. Step 2: Convert to fraction form
    383,335.33/528,643.95 = 302,954.89/x
  3. Step 3: Cross multiply
    383,335.33x = 528,643.95 × 302,954.89
  4. Step 4: Simplify right side
    383,335.33x = 160,155,267,078.20
  5. Step 5: Solve for x
    x = 160,155,267,078.20/383,335.33
  6. Step 6: Final answer
    x = 417,794.18

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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.