Home / 383,934.12-575,862.28-103,479.72

Finding the Fourth Proportional to 383,934.12, 575,862.28 and 103,479.72

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Solution

The fourth proportional to 383,934.12, 575,862.28 and 103,479.72 is: 155,209.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,934.12 : 575,862.28 = 103,479.72 : x
  2. Step 2: Convert to fraction form
    383,934.12/575,862.28 = 103,479.72/x
  3. Step 3: Cross multiply
    383,934.12x = 575,862.28 × 103,479.72
  4. Step 4: Simplify right side
    383,934.12x = 59,590,067,492.96
  5. Step 5: Solve for x
    x = 59,590,067,492.96/383,934.12
  6. Step 6: Final answer
    x = 155,209.10

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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.