Home / 257,803.04-386,688.96-153,287.12

Finding the Fourth Proportional to 257,803.04, 386,688.96 and 153,287.12

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Solution

The fourth proportional to 257,803.04, 386,688.96 and 153,287.12 is: 229,921.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,803.04 : 386,688.96 = 153,287.12 : x
  2. Step 2: Convert to fraction form
    257,803.04/386,688.96 = 153,287.12/x
  3. Step 3: Cross multiply
    257,803.04x = 386,688.96 × 153,287.12
  4. Step 4: Simplify right side
    257,803.04x = 59,274,437,014.20
  5. Step 5: Solve for x
    x = 59,274,437,014.20/257,803.04
  6. Step 6: Final answer
    x = 229,921.40

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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.