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Finding the Fourth Proportional to 260,009.60, 390,014.40 and 242,513.60

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Solution

The fourth proportional to 260,009.60, 390,014.40 and 242,513.60 is: 363,770.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,009.60 : 390,014.40 = 242,513.60 : x
  2. Step 2: Convert to fraction form
    260,009.60/390,014.40 = 242,513.60/x
  3. Step 3: Cross multiply
    260,009.60x = 390,014.40 × 242,513.60
  4. Step 4: Simplify right side
    260,009.60x = 94,583,796,195.84
  5. Step 5: Solve for x
    x = 94,583,796,195.84/260,009.60
  6. Step 6: Final answer
    x = 363,770.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.