Home / 314,235.08-471,353.60-77,577.78

Finding the Fourth Proportional to 314,235.08, 471,353.60 and 77,577.78

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Solution

The fourth proportional to 314,235.08, 471,353.60 and 77,577.78 is: 116,366.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,235.08 : 471,353.60 = 77,577.78 : x
  2. Step 2: Convert to fraction form
    314,235.08/471,353.60 = 77,577.78/x
  3. Step 3: Cross multiply
    314,235.08x = 471,353.60 × 77,577.78
  4. Step 4: Simplify right side
    314,235.08x = 36,566,565,883.01
  5. Step 5: Solve for x
    x = 36,566,565,883.01/314,235.08
  6. Step 6: Final answer
    x = 116,366.91

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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.