Home / 208,723.51-288,038.29-113,230.21

Finding the Fourth Proportional to 208,723.51, 288,038.29 and 113,230.21

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Solution

The fourth proportional to 208,723.51, 288,038.29 and 113,230.21 is: 156,257.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,723.51 : 288,038.29 = 113,230.21 : x
  2. Step 2: Convert to fraction form
    208,723.51/288,038.29 = 113,230.21/x
  3. Step 3: Cross multiply
    208,723.51x = 288,038.29 × 113,230.21
  4. Step 4: Simplify right side
    208,723.51x = 32,614,636,064.74
  5. Step 5: Solve for x
    x = 32,614,636,064.74/208,723.51
  6. Step 6: Final answer
    x = 156,257.61

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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.