Home / 285,837.02-393,465.08-247,057.20

Finding the Fourth Proportional to 285,837.02, 393,465.08 and 247,057.20

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Solution

The fourth proportional to 285,837.02, 393,465.08 and 247,057.20 is: 340,083.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,837.02 : 393,465.08 = 247,057.20 : x
  2. Step 2: Convert to fraction form
    285,837.02/393,465.08 = 247,057.20/x
  3. Step 3: Cross multiply
    285,837.02x = 393,465.08 × 247,057.20
  4. Step 4: Simplify right side
    285,837.02x = 97,208,380,962.58
  5. Step 5: Solve for x
    x = 97,208,380,962.58/285,837.02
  6. Step 6: Final answer
    x = 340,083.24

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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.