Home / 386,871.02-533,934.15-217,114.46

Finding the Fourth Proportional to 386,871.02, 533,934.15 and 217,114.46

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Solution

The fourth proportional to 386,871.02, 533,934.15 and 217,114.46 is: 299,647.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,871.02 : 533,934.15 = 217,114.46 : x
  2. Step 2: Convert to fraction form
    386,871.02/533,934.15 = 217,114.46/x
  3. Step 3: Cross multiply
    386,871.02x = 533,934.15 × 217,114.46
  4. Step 4: Simplify right side
    386,871.02x = 115,924,824,652.81
  5. Step 5: Solve for x
    x = 115,924,824,652.81/386,871.02
  6. Step 6: Final answer
    x = 299,647.22

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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.