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Finding the Fourth Proportional to 253,125.89, 349,300.90 and 139,926.77

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Solution

The fourth proportional to 253,125.89, 349,300.90 and 139,926.77 is: 193,091.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,125.89 : 349,300.90 = 139,926.77 : x
  2. Step 2: Convert to fraction form
    253,125.89/349,300.90 = 139,926.77/x
  3. Step 3: Cross multiply
    253,125.89x = 349,300.90 × 139,926.77
  4. Step 4: Simplify right side
    253,125.89x = 48,876,547,218.53
  5. Step 5: Solve for x
    x = 48,876,547,218.53/253,125.89
  6. Step 6: Final answer
    x = 193,091.85

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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.