Home / 255,821.64-383,733.18-89,570.76

Finding the Fourth Proportional to 255,821.64, 383,733.18 and 89,570.76

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Solution

The fourth proportional to 255,821.64, 383,733.18 and 89,570.76 is: 134,356.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,821.64 : 383,733.18 = 89,570.76 : x
  2. Step 2: Convert to fraction form
    255,821.64/383,733.18 = 89,570.76/x
  3. Step 3: Cross multiply
    255,821.64x = 383,733.18 × 89,570.76
  4. Step 4: Simplify right side
    255,821.64x = 34,371,272,569.82
  5. Step 5: Solve for x
    x = 34,371,272,569.82/255,821.64
  6. Step 6: Final answer
    x = 134,356.39

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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.