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Finding the Fourth Proportional to 383,145.40, 574,718.10 and 149,673.40

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Solution

The fourth proportional to 383,145.40, 574,718.10 and 149,673.40 is: 224,510.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,145.40 : 574,718.10 = 149,673.40 : x
  2. Step 2: Convert to fraction form
    383,145.40/574,718.10 = 149,673.40/x
  3. Step 3: Cross multiply
    383,145.40x = 574,718.10 × 149,673.40
  4. Step 4: Simplify right side
    383,145.40x = 86,020,012,068.54
  5. Step 5: Solve for x
    x = 86,020,012,068.54/383,145.40
  6. Step 6: Final answer
    x = 224,510.10

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1.5x scale

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.