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Finding the Fourth Proportional to 254,367.10, 351,030.72 and 139,656.32

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Solution

The fourth proportional to 254,367.10, 351,030.72 and 139,656.32 is: 192,727.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,367.10 : 351,030.72 = 139,656.32 : x
  2. Step 2: Convert to fraction form
    254,367.10/351,030.72 = 139,656.32/x
  3. Step 3: Cross multiply
    254,367.10x = 351,030.72 × 139,656.32
  4. Step 4: Simplify right side
    254,367.10x = 49,023,657,665.11
  5. Step 5: Solve for x
    x = 49,023,657,665.11/254,367.10
  6. Step 6: Final answer
    x = 192,727.98

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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.