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Finding the Fourth Proportional to 373,281.69, 515,106.51 and 212,114.37

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Solution

The fourth proportional to 373,281.69, 515,106.51 and 212,114.37 is: 292,705.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,281.69 : 515,106.51 = 212,114.37 : x
  2. Step 2: Convert to fraction form
    373,281.69/515,106.51 = 212,114.37/x
  3. Step 3: Cross multiply
    373,281.69x = 515,106.51 × 212,114.37
  4. Step 4: Simplify right side
    373,281.69x = 109,261,492,851.55
  5. Step 5: Solve for x
    x = 109,261,492,851.55/373,281.69
  6. Step 6: Final answer
    x = 292,705.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.