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Finding the Fourth Proportional to 546,159.60, 819,239.40 and 172,220.40

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Solution

The fourth proportional to 546,159.60, 819,239.40 and 172,220.40 is: 258,330.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,159.60 : 819,239.40 = 172,220.40 : x
  2. Step 2: Convert to fraction form
    546,159.60/819,239.40 = 172,220.40/x
  3. Step 3: Cross multiply
    546,159.60x = 819,239.40 × 172,220.40
  4. Step 4: Simplify right side
    546,159.60x = 141,089,737,163.76
  5. Step 5: Solve for x
    x = 141,089,737,163.76/546,159.60
  6. Step 6: Final answer
    x = 258,330.60

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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.