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Finding the Fourth Proportional to 511,430.69, 767,118.42 and 156,444.75

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Solution

The fourth proportional to 511,430.69, 767,118.42 and 156,444.75 is: 234,658.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,430.69 : 767,118.42 = 156,444.75 : x
  2. Step 2: Convert to fraction form
    511,430.69/767,118.42 = 156,444.75/x
  3. Step 3: Cross multiply
    511,430.69x = 767,118.42 × 156,444.75
  4. Step 4: Simplify right side
    511,430.69x = 120,011,649,437.30
  5. Step 5: Solve for x
    x = 120,011,649,437.30/511,430.69
  6. Step 6: Final answer
    x = 234,658.68

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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.