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Finding the Fourth Proportional to 255,363.07, 352,374.95 and 157,230.72

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Solution

The fourth proportional to 255,363.07, 352,374.95 and 157,230.72 is: 216,962.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,363.07 : 352,374.95 = 157,230.72 : x
  2. Step 2: Convert to fraction form
    255,363.07/352,374.95 = 157,230.72/x
  3. Step 3: Cross multiply
    255,363.07x = 352,374.95 × 157,230.72
  4. Step 4: Simplify right side
    255,363.07x = 55,404,166,217.53
  5. Step 5: Solve for x
    x = 55,404,166,217.53/255,363.07
  6. Step 6: Final answer
    x = 216,962.33

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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.