Home / 511,441.31-767,038.77-156,458.40

Finding the Fourth Proportional to 511,441.31, 767,038.77 and 156,458.40

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Solution

The fourth proportional to 511,441.31, 767,038.77 and 156,458.40 is: 234,649.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,441.31 : 767,038.77 = 156,458.40 : x
  2. Step 2: Convert to fraction form
    511,441.31/767,038.77 = 156,458.40/x
  3. Step 3: Cross multiply
    511,441.31x = 767,038.77 × 156,458.40
  4. Step 4: Simplify right side
    511,441.31x = 120,009,658,692.17
  5. Step 5: Solve for x
    x = 120,009,658,692.17/511,441.31
  6. Step 6: Final answer
    x = 234,649.91

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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.