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Finding the Fourth Proportional to 304,401.60, 456,602.40 and 138,189.60

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Solution

The fourth proportional to 304,401.60, 456,602.40 and 138,189.60 is: 207,284.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,401.60 : 456,602.40 = 138,189.60 : x
  2. Step 2: Convert to fraction form
    304,401.60/456,602.40 = 138,189.60/x
  3. Step 3: Cross multiply
    304,401.60x = 456,602.40 × 138,189.60
  4. Step 4: Simplify right side
    304,401.60x = 63,097,703,015.04
  5. Step 5: Solve for x
    x = 63,097,703,015.04/304,401.60
  6. Step 6: Final answer
    x = 207,284.40

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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.