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Finding the Fourth Proportional to 577,370.40, 866,055.60 and 156,645.60

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Solution

The fourth proportional to 577,370.40, 866,055.60 and 156,645.60 is: 234,968.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,370.40 : 866,055.60 = 156,645.60 : x
  2. Step 2: Convert to fraction form
    577,370.40/866,055.60 = 156,645.60/x
  3. Step 3: Cross multiply
    577,370.40x = 866,055.60 × 156,645.60
  4. Step 4: Simplify right side
    577,370.40x = 135,663,799,095.36
  5. Step 5: Solve for x
    x = 135,663,799,095.36/577,370.40
  6. Step 6: Final answer
    x = 234,968.40

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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.