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Finding the Fourth Proportional to 281,417.60, 388,093.89 and 260,518.08

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Solution

The fourth proportional to 281,417.60, 388,093.89 and 260,518.08 is: 359,272.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,417.60 : 388,093.89 = 260,518.08 : x
  2. Step 2: Convert to fraction form
    281,417.60/388,093.89 = 260,518.08/x
  3. Step 3: Cross multiply
    281,417.60x = 388,093.89 × 260,518.08
  4. Step 4: Simplify right side
    281,417.60x = 101,105,475,082.53
  5. Step 5: Solve for x
    x = 101,105,475,082.53/281,417.60
  6. Step 6: Final answer
    x = 359,272.05

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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.