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Finding the Fourth Proportional to 383,389.74, 575,340.57 and 134,071.74

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Solution

The fourth proportional to 383,389.74, 575,340.57 and 134,071.74 is: 201,197.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,389.74 : 575,340.57 = 134,071.74 : x
  2. Step 2: Convert to fraction form
    383,389.74/575,340.57 = 134,071.74/x
  3. Step 3: Cross multiply
    383,389.74x = 575,340.57 × 134,071.74
  4. Step 4: Simplify right side
    383,389.74x = 77,136,911,312.49
  5. Step 5: Solve for x
    x = 77,136,911,312.49/383,389.74
  6. Step 6: Final answer
    x = 201,197.12

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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.