Home / 511,835.16-767,865.06-156,875.88

Finding the Fourth Proportional to 511,835.16, 767,865.06 and 156,875.88

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Solution

The fourth proportional to 511,835.16, 767,865.06 and 156,875.88 is: 235,348.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,835.16 : 767,865.06 = 156,875.88 : x
  2. Step 2: Convert to fraction form
    511,835.16/767,865.06 = 156,875.88/x
  3. Step 3: Cross multiply
    511,835.16x = 767,865.06 × 156,875.88
  4. Step 4: Simplify right side
    511,835.16x = 120,459,507,008.75
  5. Step 5: Solve for x
    x = 120,459,507,008.75/511,835.16
  6. Step 6: Final answer
    x = 235,348.25

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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.