Home / 373,292.12-515,156.10-212,153.96

Finding the Fourth Proportional to 373,292.12, 515,156.10 and 212,153.96

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Solution

The fourth proportional to 373,292.12, 515,156.10 and 212,153.96 is: 292,779.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,292.12 : 515,156.10 = 212,153.96 : x
  2. Step 2: Convert to fraction form
    373,292.12/515,156.10 = 212,153.96/x
  3. Step 3: Cross multiply
    373,292.12x = 515,156.10 × 212,153.96
  4. Step 4: Simplify right side
    373,292.12x = 109,292,406,633.16
  5. Step 5: Solve for x
    x = 109,292,406,633.16/373,292.12
  6. Step 6: Final answer
    x = 292,779.84

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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.