Home / 305,258.10-457,777.80-155,448.60

Finding the Fourth Proportional to 305,258.10, 457,777.80 and 155,448.60

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Solution

The fourth proportional to 305,258.10, 457,777.80 and 155,448.60 is: 233,117.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,258.10 : 457,777.80 = 155,448.60 : x
  2. Step 2: Convert to fraction form
    305,258.10/457,777.80 = 155,448.60/x
  3. Step 3: Cross multiply
    305,258.10x = 457,777.80 × 155,448.60
  4. Step 4: Simplify right side
    305,258.10x = 71,160,918,121.08
  5. Step 5: Solve for x
    x = 71,160,918,121.08/305,258.10
  6. Step 6: Final answer
    x = 233,117.21

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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.