Home / 434,442.80-651,664.20-118,931.60

Finding the Fourth Proportional to 434,442.80, 651,664.20 and 118,931.60

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Solution

The fourth proportional to 434,442.80, 651,664.20 and 118,931.60 is: 178,397.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,442.80 : 651,664.20 = 118,931.60 : x
  2. Step 2: Convert to fraction form
    434,442.80/651,664.20 = 118,931.60/x
  3. Step 3: Cross multiply
    434,442.80x = 651,664.20 × 118,931.60
  4. Step 4: Simplify right side
    434,442.80x = 77,503,465,968.72
  5. Step 5: Solve for x
    x = 77,503,465,968.72/434,442.80
  6. Step 6: Final answer
    x = 178,397.40

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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.