Home / 305,728.68-456,534.31-249,680.05

Finding the Fourth Proportional to 305,728.68, 456,534.31 and 249,680.05

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Solution

The fourth proportional to 305,728.68, 456,534.31 and 249,680.05 is: 372,838.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,728.68 : 456,534.31 = 249,680.05 : x
  2. Step 2: Convert to fraction form
    305,728.68/456,534.31 = 249,680.05/x
  3. Step 3: Cross multiply
    305,728.68x = 456,534.31 × 249,680.05
  4. Step 4: Simplify right side
    305,728.68x = 113,987,509,564.80
  5. Step 5: Solve for x
    x = 113,987,509,564.80/305,728.68
  6. Step 6: Final answer
    x = 372,838.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.