Home / 511,998-767,968.20-157,011.06

Finding the Fourth Proportional to 511,998, 767,968.20 and 157,011.06

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Solution

The fourth proportional to 511,998, 767,968.20 and 157,011.06 is: 235,507.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,998 : 767,968.20 = 157,011.06 : x
  2. Step 2: Convert to fraction form
    511,998/767,968.20 = 157,011.06/x
  3. Step 3: Cross multiply
    511,998x = 767,968.20 × 157,011.06
  4. Step 4: Simplify right side
    511,998x = 120,579,501,128.29
  5. Step 5: Solve for x
    x = 120,579,501,128.29/511,998
  6. Step 6: Final answer
    x = 235,507.76

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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.