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Finding the Fourth Proportional to 366,897.60, 550,346.40 and 260,609.40

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Solution

The fourth proportional to 366,897.60, 550,346.40 and 260,609.40 is: 390,914.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,897.60 : 550,346.40 = 260,609.40 : x
  2. Step 2: Convert to fraction form
    366,897.60/550,346.40 = 260,609.40/x
  3. Step 3: Cross multiply
    366,897.60x = 550,346.40 × 260,609.40
  4. Step 4: Simplify right side
    366,897.60x = 143,425,445,096.16
  5. Step 5: Solve for x
    x = 143,425,445,096.16/366,897.60
  6. Step 6: Final answer
    x = 390,914.10

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Similar ratio
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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.