Home / 243,350.02-365,044.20-85,613.86

Finding the Fourth Proportional to 243,350.02, 365,044.20 and 85,613.86

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Solution

The fourth proportional to 243,350.02, 365,044.20 and 85,613.86 is: 128,427.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,350.02 : 365,044.20 = 85,613.86 : x
  2. Step 2: Convert to fraction form
    243,350.02/365,044.20 = 85,613.86/x
  3. Step 3: Cross multiply
    243,350.02x = 365,044.20 × 85,613.86
  4. Step 4: Simplify right side
    243,350.02x = 31,252,843,032.61
  5. Step 5: Solve for x
    x = 31,252,843,032.61/243,350.02
  6. Step 6: Final answer
    x = 128,427.53

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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.