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Finding the Fourth Proportional to 253,392.48, 349,688.88 and 140,225.76

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Solution

The fourth proportional to 253,392.48, 349,688.88 and 140,225.76 is: 193,515.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,392.48 : 349,688.88 = 140,225.76 : x
  2. Step 2: Convert to fraction form
    253,392.48/349,688.88 = 140,225.76/x
  3. Step 3: Cross multiply
    253,392.48x = 349,688.88 × 140,225.76
  4. Step 4: Simplify right side
    253,392.48x = 49,035,388,961.55
  5. Step 5: Solve for x
    x = 49,035,388,961.55/253,392.48
  6. Step 6: Final answer
    x = 193,515.57

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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.