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Finding the Fourth Proportional to 511,461.57, 767,223.07 and 156,478.67

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Solution

The fourth proportional to 511,461.57, 767,223.07 and 156,478.67 is: 234,727.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,461.57 : 767,223.07 = 156,478.67 : x
  2. Step 2: Convert to fraction form
    511,461.57/767,223.07 = 156,478.67/x
  3. Step 3: Cross multiply
    511,461.57x = 767,223.07 × 156,478.67
  4. Step 4: Simplify right side
    511,461.57x = 120,054,045,586.92
  5. Step 5: Solve for x
    x = 120,054,045,586.92/511,461.57
  6. Step 6: Final answer
    x = 234,727.40

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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.