Home / 208,852.48-288,216.75-113,359.21

Finding the Fourth Proportional to 208,852.48, 288,216.75 and 113,359.21

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Solution

The fourth proportional to 208,852.48, 288,216.75 and 113,359.21 is: 156,435.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,852.48 : 288,216.75 = 113,359.21 : x
  2. Step 2: Convert to fraction form
    208,852.48/288,216.75 = 113,359.21/x
  3. Step 3: Cross multiply
    208,852.48x = 288,216.75 × 113,359.21
  4. Step 4: Simplify right side
    208,852.48x = 32,672,023,088.77
  5. Step 5: Solve for x
    x = 32,672,023,088.77/208,852.48
  6. Step 6: Final answer
    x = 156,435.89

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1.5x scale

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.