Home / 208,848.31-288,210.94-113,355

Finding the Fourth Proportional to 208,848.31, 288,210.94 and 113,355

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Solution

The fourth proportional to 208,848.31, 288,210.94 and 113,355 is: 156,430.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,848.31 : 288,210.94 = 113,355 : x
  2. Step 2: Convert to fraction form
    208,848.31/288,210.94 = 113,355/x
  3. Step 3: Cross multiply
    208,848.31x = 288,210.94 × 113,355
  4. Step 4: Simplify right side
    208,848.31x = 32,670,150,820.31
  5. Step 5: Solve for x
    x = 32,670,150,820.31/208,848.31
  6. Step 6: Final answer
    x = 156,430.05

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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.