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Finding the Fourth Proportional to 254,368.42, 351,032.53 and 139,657.64

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Solution

The fourth proportional to 254,368.42, 351,032.53 and 139,657.64 is: 192,729.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,368.42 : 351,032.53 = 139,657.64 : x
  2. Step 2: Convert to fraction form
    254,368.42/351,032.53 = 139,657.64/x
  3. Step 3: Cross multiply
    254,368.42x = 351,032.53 × 139,657.64
  4. Step 4: Simplify right side
    254,368.42x = 49,024,372,598.72
  5. Step 5: Solve for x
    x = 49,024,372,598.72/254,368.42
  6. Step 6: Final answer
    x = 192,729.79

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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.