Home / 221,509.86-305,577.18-144,995.28

Finding the Fourth Proportional to 221,509.86, 305,577.18 and 144,995.28

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Solution

The fourth proportional to 221,509.86, 305,577.18 and 144,995.28 is: 200,023.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,509.86 : 305,577.18 = 144,995.28 : x
  2. Step 2: Convert to fraction form
    221,509.86/305,577.18 = 144,995.28/x
  3. Step 3: Cross multiply
    221,509.86x = 305,577.18 × 144,995.28
  4. Step 4: Simplify right side
    221,509.86x = 44,307,248,775.71
  5. Step 5: Solve for x
    x = 44,307,248,775.71/221,509.86
  6. Step 6: Final answer
    x = 200,023.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.